Finding the right air compressor is crucial for clean plasma cuts. Discover the Best Air Compressors for Plasma Cutter to elevate your metalworking projects.
A plasma cutter is an essential tool for metal fabrication, but its performance is only as good as its air supply. Choosing the right air compressor is critical to ensuring your cutter operates at peak efficiency, delivering the clean, precise cuts you need without interruptions. The correct compressor provides a consistent flow of dry, high-pressure air, which is vital for maintaining a stable plasma arc and extending the life of your consumables. We understand that navigating the world of CFM, PSI, and tank size can be confusing, which is why we’ve put together a comprehensive guide.
In this detailed review, we’ll break down the key features that make a compressor stand out for plasma cutting applications. We’ve evaluated a variety of models, from compact pancake compressors perfect for hobbyists to more robust units designed for continuous professional use. By highlighting their strengths and weaknesses, we aim to help you make an informed decision that matches your specific needs and budget. Now, let’s get right into our top picks for the Best Air Compressors for Plasma Cutter and find the perfect match for your workshop.
Top 5 Best Air Compressors for Plasma Cutter
10 Best Air Compressors for Plasma Cutter Review
1. DEWALT Pancake Air Compressor, 6 Gallon, 165 PSI (DWFP55126)
The DEWALT DWFP55126 is a robust and reliable pancake air compressor designed for both professional tradespeople and serious DIYers. With a 6-gallon tank and a maximum pressure of 165 PSI, it’s a versatile machine capable of handling a wide range of tasks. Its 2.6 SCFM at 90 PSI is a decent rate for many pneumatic tools, but for continuous plasma cutting, it’s best suited for shorter or lighter-duty cuts. Its compact design and strong performance make it a go-to choice for those needing dependable power on the go. This model is a great starting point for anyone looking to get into plasma cutting without a massive investment.
One of its standout features is the high-efficiency motor, which ensures a smooth start even in cold weather, a huge plus for those working in unheated garages or on chilly jobsites. Furthermore, the oil-free pump is a significant advantage, as it eliminates the need for messy maintenance and reduces the risk of oil contamination in your air supply. However, with a noise level of 78.5 dBA, it is not the quietest model on the market, which can be a consideration in residential or shared workspaces. This compressor is a workhorse, built to last and withstand the rigors of a demanding environment.
Ultimately, the DEWALT DWFP55126 offers an excellent balance of power and portability. It’s an ideal choice for the user who needs a reliable compressor for a variety of tasks, including occasional plasma cutting. While not designed for non-stop, heavy-duty cutting sessions, its durability and consistent performance make it a solid investment. For most light to medium-duty applications, this compressor provides the capacity and pressure needed to get the job done right. It’s a testament to DEWALT’s commitment to quality and usability.
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2. BOSTITCH Air Compressor Kit, Oil-Free, 6 Gallon, 150 PSI (BTFP02012-WPK)
The BOSTITCH BTFP02012-WPK is a comprehensive kit for a variety of air tool applications, making it a great value for hobbyists and professionals alike. This 6-gallon pancake compressor is built for convenience with a lightweight design and oil-free pump that requires no maintenance. Its 150 PSI max pressure provides a solid supply for a range of tools, from nail guns to inflators. The inclusion of a 50-foot rubber air hose and a 10-piece accessory kit means you can get to work right out of the box. This makes it an especially appealing choice for those who are just starting to build their workshop. The compressor’s portable design and user-friendly features are a definite plus.
Designed for ease of use, this compressor is relatively quiet for its class, operating at 80 dBA, which is a noticeable improvement over some older, louder models. Its high-flow regulator and dual couplers are excellent for maximizing the performance of your tools, allowing for more efficient work. While its CFM may not be ideal for extended, heavy-duty plasma cutting, it is perfectly suitable for short bursts and lighter materials. One minor drawback is the slightly higher noise level compared to ultra-quiet models, but this is a common trade-off for reliable power at an affordable price point. The kit’s comprehensive nature adds to its overall value proposition.
Overall, this BOSTITCH kit is a fantastic option for anyone seeking a versatile and complete air compressor solution. It’s particularly well-suited for users who plan to tackle a mix of projects, from nailing and fastening to occasional plasma cutting. The combination of a capable compressor with a full accessory kit ensures you have everything you need to begin your projects without a separate trip to the hardware store. It is a smart and practical choice that delivers solid performance for a variety of tasks.
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3. Makita MAC2400 2.5 HP Big Bore Air Compressor
The Makita MAC2400 is an air compressor built for the demands of a professional job site. Its powerful 2.5 HP 4-pole motor delivers 4.2 CFM at 90 PSI, a strong output that allows for increased productivity with a wide array of pneumatic tools. The Big Bore cast iron pump with a large piston is designed for faster recovery time, meaning less waiting between tool uses and more time on the job. The compressor’s roll-cage construction provides complete protection, ensuring it can withstand the bumps and drops common in a tough work environment. For welders and fabricators, this machine is a step up, offering more sustained airflow for longer cuts.
One of the key benefits of the MAC2400 is its oil-lubricated pump, which allows for cooler running temperatures and reduces wear over time, extending the compressor’s lifespan. The low AMP draw is another significant advantage, as it minimizes the risk of tripping breakers, a common issue with powerful tools on shared circuits. However, it’s worth noting that the oil-lubricated design requires periodic maintenance. The 79 dBA noise level, while manageable, is still considerable, and its heavier weight makes it less portable than a pancake-style unit. Nonetheless, its durability and consistent power output make it a serious contender for professional applications.
In summary, the Makita MAC2400 is an exceptional choice for the professional user who requires high performance and reliability. Its robust build and fast recovery time make it ideal for tasks that demand continuous airflow, such as sustained plasma cutting or running multiple tools simultaneously. If you need a compressor that is built to last and won’t let you down on a heavy-duty job, this model is a smart investment. It’s a testament to Makita’s engineering for those who demand the best from their equipment.
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4. PORTER-CABLE Air Compressor, 6-Gallon, Pancake, Oil-Free (C2002-ECOM)
The PORTER-CABLE C2002-ECOM is a quintessential pancake air compressor that delivers a great mix of power and convenience for both DIY enthusiasts and light-duty professionals. It features a 6-gallon tank that can hold up to 150 PSI, allowing for more air in the tank and longer runtimes for your tools. With 2.6 SCFM at 90 PSI, it provides a quick recovery time, which is essential for continuous work. This unit is built for stability with its pancake-style tank and rubber feet, ensuring it stays put on the job. The oil-free pump is a major benefit, as it requires zero maintenance and eliminates the risk of oil-related complications.
One of the key aspects of this compressor is its low-amp 120V motor, which makes it easy to start in cold weather and is less likely to trip a breaker, even when used with an extension cord. This is a practical advantage that many users will appreciate on the job site or in a home workshop. However, much like other pancake models, its noise level can be a drawback, making it loud for indoor use. While it is a versatile machine for tasks like nailing and inflating, its SCFM output is better suited for intermittent plasma cutting rather than prolonged sessions. For users with basic needs, this is a very capable and reliable machine.
In conclusion, the PORTER-CABLE C2002-ECOM is a fantastic entry-level to mid-range compressor. It’s a great choice for those who need a portable, durable, and low-maintenance solution for a variety of tasks. While not a heavy-duty continuous-run machine, it performs admirably for plasma cutting small parts or making short cuts. Its combination of solid features and affordability makes it a top pick for hobbyists and homeowners looking for a dependable air supply. It stands as a testament to the brand’s reputation for creating practical and accessible tools for a wide audience.
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5. California Air Tools 8010 1.0 HP Ultra Quiet and Oil-Free Air Compressor
The California Air Tools 8010 is a game-changer for anyone who values a quiet workspace. Operating at an astonishingly low 60 dBA, this compressor is one of the quietest models you can buy, making it perfect for indoor use or in a shared workshop. Its 8-gallon steel tank, combined with a 1.0 HP ultra-quiet motor, delivers a solid 2.20 CFM at 90 PSI. This makes it a great choice for a variety of tasks, particularly for those that don’t require an extreme amount of continuous airflow. The oil-free dual-piston pump system is engineered for longevity, boasting a lifespan of over 3000 hours before any noticeable wear.
Beyond its low noise level, the 8010’s oil-free design ensures clean air for your tools, which is especially important for painting and sensitive applications like plasma cutting. The lightweight design and included wheel kit make it remarkably easy to move around your shop, offering excellent portability. While its CFM rating might be lower than some industrial models, its fast tank fill time of 165 seconds and rapid recovery of 60 seconds are impressive. The lower RPM motor is a significant factor in both its quiet operation and reduced wear. The only minor downside is that its CFM output may not be sufficient for a high-amperage plasma cutter on long, continuous cuts.
Ultimately, the California Air Tools 8010 is the top choice for anyone who prioritizes quiet operation and clean, oil-free air. It’s ideal for hobbyists, artists, and professionals working in noise-sensitive environments where a loud compressor is not an option. While it may not be the most powerful unit on the market, its performance, ease of use, and exceptional quietness make it a standout product and a fantastic value. For light to moderate plasma cutting, this compressor offers a unique blend of functionality and comfort that is hard to beat.
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6. CRAFTSMAN Brad Nailer and Air Compressor Combo Kit With Hose (CMEC1KIT18)
The CRAFTSMAN CMEC1KIT18 is an all-in-one solution perfect for a DIYer or homeowner who needs a versatile air tool setup. This kit includes a portable, oil-free compressor and an 18-gauge brad nailer, along with a hose for immediate use. With a 150 PSI max pressure, the compressor is well-suited for a variety of small-to-medium projects, from trim work to minor hobby tasks. The lightweight design makes it easy to carry around the house or to a job site. Its compact nature ensures it won’t take up much space in a crowded workshop or garage, which is a significant advantage for those with limited space.
While this combo kit is primarily designed for nailing and fastening, the compressor’s output can also handle very light-duty plasma cutting on thin materials. The oil-free pump is a major convenience, as it means you won’t have to worry about regular maintenance. However, its CFM and tank size are quite limited, so it is not a practical choice for sustained plasma cutting. You would find yourself waiting for the compressor to recover after every short cut, which can be frustrating and inefficient. Furthermore, it is relatively loud, which is typical for this class of compressor. For basic home repairs, it is a very capable machine.
Ultimately, this CRAFTSMAN combo kit is the ideal choice for someone whose primary needs are nailing and light-duty projects. Its value lies in the fact that it provides both the compressor and a key tool in a single, affordable package. For tasks like installing baseboards or building small furniture, it’s a perfect fit. If you’re looking for a compressor specifically for plasma cutting, you would be better served by a more robust model with a higher CFM and larger tank. But for a homeowner who needs a versatile tool for a variety of tasks, this kit offers excellent value.
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7. Metabo HPT Air Compressor, THE TANK, 200 PSI, 6 Gallon Tank (EC914S)
The Metabo HPT “THE TANK” is a powerful and highly versatile pancake air compressor designed for heavy-duty nailing applications, but its high pressure and airflow make it a capable partner for plasma cutters. With a stout 200 PSI max pressure and a 6-gallon tank, this unit offers a robust air supply. The most impressive feature is its 4 CFM at 90 PSI, which is a significantly higher airflow than most other pancake models. This extra CFM is crucial for powering more demanding tools and allows for more sustained cutting with your plasma cutter. The compact and lightweight design makes it a truly portable jobsite solution, allowing you to easily move it wherever it’s needed.
In addition to its raw power, the EC914S is engineered for efficiency. The higher CFM rating means it can run multiple tools simultaneously, a major benefit for crews on a professional job. This compressor is capable of running several framing or finishing nailers at once without a noticeable drop in performance. Its 73 dBA noise level, while not silent, is very reasonable for a compressor with this much power, which helps reduce ear fatigue on the job. The compressor’s durable construction and reliable motor make it a long-term investment. While it’s not meant to replace a large shop compressor, it’s an excellent option for users needing pro-grade performance in a portable package.
Overall, the Metabo HPT EC914S is a standout choice for the professional or serious hobbyist who needs a portable compressor that doesn’t compromise on power. Its combination of high PSI and exceptional CFM for its size makes it a perfect match for many plasma cutters, ensuring smooth and consistent cuts. If you’re tired of small compressors that can’t keep up with your tools, “THE TANK” is a powerful alternative that delivers on its promises. It’s an ideal unit for those who need a portable workhorse for both nailing and metal fabrication projects.
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8. DEWALT Air Compressor for Trim, 200-PSI Max (DWFP55130)
The DEWALT DWFP55130 is a high-performance compressor specifically designed for trim and finish applications, but its specifications also make it a viable option for plasma cutting. With a 200 PSI max pressure and a 2.5-gallon tank, this unit is engineered for power and quick recovery. It delivers 3.0 SCFM at 90 PSI, allowing you to fire a large number of nails with minimal downtime. The low 71.5 dBA noise level is a significant selling point, making it one of the quieter compressors in its class and much more comfortable to use in enclosed spaces. Its compact and lightweight design is another plus for portability on the job site.
One of the best features of this compressor is the durable oil-free pump, which ensures extended, maintenance-free operation. This is especially beneficial for users who don’t want the hassle of checking oil levels and performing routine maintenance. The low 12-amp draw motor provides a smooth start-up and reduces the chances of tripping a breaker, a common frustration on older electrical circuits. While its tank is smaller than other models on our list, its high PSI and efficient recovery make up for it in many scenarios. For plasma cutting, its CFM is better suited for intermittent use on lighter materials rather than prolonged, heavy-duty cuts.
Ultimately, the DEWALT DWFP55130 is an excellent choice for professionals and serious DIYers who need a quiet and powerful compressor for finish work. While its primary purpose is trim, its high pressure and respectable CFM make it a capable backup or secondary compressor for short plasma cutting sessions. The combination of quiet operation, power, and durability makes it a valuable addition to any workshop. It is a testament to DEWALT’s ability to create tools that are both powerful and user-friendly, offering a great balance of features.
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9. Quiet Air Compressor, Only 68dB, 5 Gallon Steel Tank (by Limodot)
The Limodot Quiet Air Compressor is a powerful yet whisper-quiet option, making it a great choice for hobbyists and professionals who work in noise-sensitive environments. With a noise level of just 68 dBA, it allows you to work in a workshop or even indoors without disturbing others. Its 5-gallon steel tank and 1.2 HP motor deliver 2.8 CFM at 90 PSI, which is a respectable output for a variety of tasks, including plasma cutting. The oil-free design is a huge advantage, as it reduces operating costs and eliminates the need for messy maintenance. Furthermore, the compressor comes with an 11-piece accessory kit, which is a fantastic bonus for getting started right away.
One of the key features of this unit is its induction motor, which operates at a low speed of 3400 RPM, contributing to its quiet operation and long lifespan. It boasts a very fast recovery time of just 25 seconds from 70 to 90 PSI, which is crucial for continuous-use tools like plasma cutters. The included accessories, such as a 25-foot hose and various air tools, add incredible value. While the 5-gallon tank may not be enough for extremely long, continuous cuts on thick materials, the fast recovery time helps to mitigate this. For most home projects and hobbyist welding, this compressor will provide more than enough power without the noise.
In summary, this quiet air compressor by Limodot is an excellent all-around option for anyone seeking a powerful, quiet, and low-maintenance solution. It’s a particularly good fit for plasma cutter users who work in a residential setting and need to keep noise to a minimum. The combination of a strong motor, fast recovery, and a full accessory kit makes it an exceptional value. If you’re looking for a compressor that can handle a variety of tasks without the typical racket, this model is one of the Best Air Compressors for Plasma Cutter on the market today.
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10. Craftsman Air Compressor, 1.5 Gallon (CMXECXA0200141A)
The Craftsman CMXECXA0200141A is a super-compact and portable air compressor designed for small home improvement projects and hobby use. With a 1.5-gallon hotdog-style tank and a 3/4 HP motor, it provides enough power for tasks like inflating tires, hobby painting, and using a finish nailer. Its lightweight and compact size make it easy to carry with one hand and store in even the tightest of spaces. The compressor’s 135 PSI max pressure and a decent 1.5 CFM at 90 PSI allow for a fast recovery time, meaning you won’t have to wait long between bursts of use. The oil-free pump is a major convenience, as it requires zero maintenance, making it perfect for a new user.
While this compressor is fantastic for small jobs, it is not built for the air demands of a plasma cutter. The low CFM and small tank size mean it will quickly run out of air during any kind of cutting, even on thin materials. You would be constantly waiting for the tank to refill, which would be inefficient and frustrating. The noise level of 87 dBA is also quite high, which is a drawback for indoor use. However, for what it is designed for—small projects and home use—it performs very well. The quick-connect coupler is a nice feature that makes it easy to switch tools, and the durable stainless steel tank ensures a long lifespan.
In conclusion, the Craftsman CMXECXA0200141A is a great tool for the homeowner or hobbyist with very light-duty needs. It is an ideal first compressor for someone who wants to tackle tasks like tire inflation or using a blow gun for cleaning. For plasma cutting, however, this model is not a practical choice due to its limited CFM and small tank. If you’re considering a plasma cutter, you should look for a model with a larger tank and a higher CFM rating to avoid constant interruptions. While this Craftsman unit is excellent for its intended purpose, it is not one of the Best Air Compressors for Plasma Cutter.
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How to Choose Best Air Compressors for Plasma Cutter
When you’re ready to buy an air compressor to pair with your plasma cutter, it’s essential to look beyond the basic price tag. A plasma cutter relies on a steady, consistent supply of compressed air to maintain its arc and produce clean, precise cuts. The right air compressor ensures a smooth workflow, while the wrong one can lead to frustrating interruptions and poor cut quality. This guide will walk you through the most important factors to consider, so you can confidently select the Best Air Compressors for Plasma Cutter that meets your specific needs.
CFM (Cubic Feet per Minute)
CFM is arguably the most critical specification for a plasma cutting air compressor. It measures the volume of air the compressor can deliver at a given pressure. For plasma cutting, you need a continuous flow of air. If your compressor’s CFM rating is too low, the pressure will drop during a long cut, causing the arc to become unstable or even extinguish entirely. Always check your plasma cutter’s manual for its CFM requirement and choose a compressor that can provide at least 1.5 times that amount to ensure a comfortable buffer for continuous operation.
PSI (Pounds per Square Inch)
PSI refers to the air pressure the compressor can generate and maintain. Plasma cutters have a specific operating pressure range, typically between 70-120 PSI. While most compressors on the market can easily reach this pressure, it’s crucial to select one that can maintain it under load. A compressor with a higher maximum PSI will typically have more air stored in the tank, providing a better reserve. Always match your compressor’s output pressure to your cutter’s specifications for optimal performance and to prevent damage to your equipment.
Tank Size (Gallons)
The tank size of an air compressor acts as a buffer or reservoir. While it doesn’t affect the compressor’s overall CFM output, a larger tank allows for longer, uninterrupted cutting sessions. It also reduces the frequency with which the compressor’s motor has to run, extending its lifespan and reducing noise. For hobbyists or those doing short, intermittent cuts, a 6- to 8-gallon tank may suffice. For continuous, professional-grade cutting, a 20-gallon or larger tank is highly recommended to keep up with the demands of the plasma cutter. You can learn more about a full range of cutters by checking out our Best Plasma Cutters review.
Noise Level (dBA)
Air compressors are notoriously loud. The noise level, measured in dBA, can have a significant impact on your working environment. If you work in a residential garage or a shared workshop, a quieter model is a major consideration. Look for compressors with a noise level in the 60-75 dBA range. While they may be less powerful or more expensive, the comfort and reduced noise pollution are often worth the investment, allowing you to work for longer periods without ear fatigue.
Oil-Free vs. Oil-Lubricated Pumps
The type of pump is a key factor in maintenance and air quality. Oil-free pumps are low-maintenance and deliver clean, oil-free air, which is essential for plasma cutting as oil contamination can ruin consumables and affect cut quality. However, they tend to be louder and have a shorter lifespan. Oil-lubricated pumps require regular maintenance but are generally quieter and more durable. For most plasma cutting applications, an oil-free compressor is the recommended choice to ensure air purity.
What About Plasma Cutters with Built-in Air Compressors?
Plasma cutters with built-in air compressors offer a unique solution for portability and convenience. These units eliminate the need for a separate, bulky compressor, making them ideal for mobile jobs and workshops with limited space. They are incredibly easy to set up—just plug in the machine, and you’re ready to cut. For occasional use and cutting thinner materials, they can be a fantastic, all-in-one tool.
However, it’s important to understand their limitations. The built-in compressors are typically low-powered and have a limited duty cycle. This means they are not suited for long, continuous cuts on thicker metals. For more demanding tasks, you’ll still need a separate, powerful external compressor. They are a good starting point for a beginner, but for professional, consistent work, an external compressor is the way to go. To dive deeper into this topic, be sure to read our review of the Best Plasma Cutters with Built-in Air Compressor.
How to Use Best Air Compressors for Plasma Cutter
To get the most out of your air compressor for plasma cutting, follow these key steps:
- Setup and Filtration: Start by placing your compressor on a level, stable surface. Plasma cutters require clean, dry air. To prevent moisture from entering your cutter, install a water separator and a quality air filter in-line between the compressor and the cutter. This is the single most important step for preserving your consumables and ensuring a clean cut.
- Set PSI and Airflow: Consult your plasma cutter’s manual for the recommended PSI and CFM. Adjust the regulator on your compressor to match this setting. It’s often helpful to set the PSI slightly higher than the minimum requirement to account for pressure drops in the hose. Always make sure the air is flowing before beginning your cut to ensure a stable arc.
- Maintenance and Safety: Regularly drain the moisture from your compressor’s tank by opening the drain valve at the bottom. This prevents rust and prolongs the tank’s life. For oil-lubricated models, check and change the oil as recommended. Always wear hearing protection, as even “quiet” compressors can damage your hearing over time.
- Troubleshooting and Pro Tips: If your cut quality is poor or the arc flickers, the most common culprit is a lack of air. First, check your air pressure and CFM. If the compressor cannot keep up with the demand, you may need to pause and allow the tank to refill. For long cuts, consider upgrading to a compressor with a higher CFM and larger tank.
Frequently Asked Questions
What PSI and CFM do I need for a plasma cutter?
Most plasma cutters require an operating pressure between 70 and 120 PSI. The CFM requirement varies by model, but a good rule of thumb is to choose a compressor that provides at least 1.5 times the CFM your cutter specifies, with a minimum of 4 CFM at 90 PSI for most hobbyist cutters.
Can I use a small pancake compressor for a plasma cutter?
Yes, you can use a small pancake compressor for a plasma cutter, but only for short, intermittent cuts on thin material. A small tank and low CFM will struggle to keep up with the continuous air demand of a plasma cutter, leading to frequent interruptions and a drop in cut quality.
Do I need an air dryer or filter for my compressor?
Yes, absolutely. Plasma cutters require clean and dry air. Moisture and oil in the air supply will damage your consumables, leading to poor cuts and expensive replacements. An in-line water separator and a quality filter are essential to protect both your cutter and the quality of your work.
What is the difference between an oil-free and an oil-lubricated compressor?
Oil-free compressors use a special coating on the cylinder walls to reduce friction, eliminating the need for oil. They are low-maintenance and produce cleaner air, but are generally louder and have a shorter lifespan. Oil-lubricated compressors require regular oil changes but are typically quieter, more durable, and better for professional, heavy-duty use.
How do I know if my compressor is big enough?
The best way to tell is by watching your air gauge while you cut. If the pressure drops significantly and the compressor’s motor is running constantly to keep up, your compressor is likely too small. A properly sized compressor will be able to maintain a stable pressure and have a rest period between its cycles.
Final Thoughts
Choosing the right air compressor is a critical step in setting up your metalworking shop for success. The ideal unit will provide a steady, dry stream of high-pressure air that matches or exceeds the demands of your plasma cutter, ensuring smooth cuts and a long lifespan for your consumables. Ultimately, prioritizing CFM, tank size, and a clean air supply will help you avoid frustrating interruptions and achieve professional results.
For most users, our top recommendations balance power and portability, making them solid choices for a variety of tasks. For the hobbyist or DIYer who needs a versatile, quiet machine, the California Air Tools 8010 offers an unbeatable mix of comfort and performance. If you’re a professional who needs a rugged, high-output machine that can handle sustained use, the Makita MAC2400 is an excellent and reliable investment that will serve you well for years to come.
