M18 FUEL vs M18 Brushless Impact Driver

Milwaukee sells two kinds of brushless M18 impact drivers: the flagship FUEL and a plainer Compact Brushless model. Both use the same batteries. The question is whether FUEL's extra torque, speed and drive modes justify the higher price.

Updated October 10, 20267 min readBy the ImpactDriver.net team

We research tools from manufacturer specs and long-term owner feedback. If you buy through our Amazon links we may earn a commission at no extra cost to you. How we make money.

What FUEL actually means

All current M18 impact drivers worth buying are brushless, so "FUEL vs brushless" is a slightly misleading comparison. FUEL is Milwaukee's top performance tier, and it is defined by three parts working together:

• POWERSTATE brushless motor: Milwaukee's high-output brushless motor design used in FUEL tools.
• REDLINK PLUS intelligence: electronics that manage communication between tool and battery, protect against overload and overheating, and enable features like drive modes.
• REDLITHIUM batteries: Milwaukee's M18 packs, which work in every M18 tool.

Non-FUEL brushless tools, like the M18 Compact Brushless 3650, use a simpler brushless motor and less sophisticated control. They still gain the main brushless advantages over brushed motors: better efficiency, longer runtime and no brushes to wear out. More on that in brushless vs brushed impact drivers.

M18 FUEL vs M18 brushless impact driver: the specs

The current non-FUEL brushless model on Milwaukee's site is the M18 Compact Brushless 1/4-inch Hex Impact Driver, 3650-20. The FUEL model is the 2953. Figures are from Milwaukee's product pages.

Both are tested by the same brand, so the comparison is fair within Milwaukee. Do not compare these ratings directly with other brands, which measure torque differently.

The differences that matter in use

Drive modes are the biggest real difference

The torque gap is about 18%, and the size is nearly identical. The feature you will notice every day is 4-Mode Drive Control. Mode 1 limits speed and power for small screws, cabinet hardware and soft materials. Modes 2 and 3 step up for general and heavy driving. The self-tapping screw mode drives fast and then slows as the screw seats in sheet metal so the threads do not strip. The 3650 relies on your trigger finger alone. That works, but small screws and self-drilling screws demand more care. Learn how modes work in impact driver speed settings and modes.

Power under load

On deck screws, cabinets and everyday fastening, owners report little practical difference between the two. On long structural screws and lag bolts, the FUEL model's higher rating and more advanced motor control keep it driving faster, especially with a larger pack. If heavy fasteners are a big part of your work, that adds up.

Weight and size

The 3650 is listed lighter and the two heads are less than a tenth of an inch apart in length. With the same battery, they handle similarly. Neither is a bulky tool by M18 standards.

Which job, which tool

Price and value

The Compact Brushless is usually priced well below the FUEL model, and FUEL kits cost more again. Both are often discounted, especially in holiday promotions and kit bundles, so check current listings rather than assuming list price. If you already own M18 batteries, buying a bare tool is the cheapest route either way; see bare tool vs kit. If you need packs, the M18 battery guide explains which sizes suit impact drivers.

Who should pay for FUEL?

Strengths and weaknesses

• FUEL 2953 strengths: higher torque rating, faster top speed, four modes, self-tapping mode. Weaknesses: costs more; the power is overkill for light work and can snap small screws if you skip Mode 1.
• Compact Brushless 3650 strengths: lower price, light, compact, same batteries and 5-year warranty listing. Weaknesses: no drive modes, lower rating, less speed under heavy load, no published IPM on Milwaukee's page.

M18 FUEL 2953 bare tool on Amazon M18 Compact Brushless 3650 on Amazon

For the wider lineup, including M12, see the M18 impact driver overview, all Milwaukee impact drivers and M12 vs M18.

Model codes, alternatives and common mistakes

Reading the model numbers

Milwaukee model codes follow a simple pattern. The four digits identify the tool, and the suffix tells you what is in the box: -20 means bare tool and -22 means a kit with two batteries and a charger. So 2953-20 is the bare FUEL impact driver and 2953-22 is the kit. Non-FUEL brushless tools are sometimes bundled into combo kits under a different kit number, so read the contents list rather than relying on the box art. If a listing says only "M18 impact driver" without a model number, check it before buying, since older brushed and earlier FUEL generations still circulate.

Alternatives worth a look

• M12 FUEL 3453: rated at 1,500 in-lbs with four modes, lighter with its battery, and a strong pick for interior trades. The trade-off is shorter runtime and slower driving on lags; the M12 vs M18 comparison linked below covers it in detail.
• M18 FUEL SURGE hydraulic driver: much quieter, with a lower torque rating. Worth it for all-day indoor installers working in occupied homes, offices and schools, less so for decks and framing where torque matters most.
• Combo kits: a FUEL or brushless drill and impact pair often costs little more than one kit alone, and gives you a drill with a clutch for the small screws an impact driver handles poorly.

Common mistakes

• Assuming non-FUEL means brushed. The 3650 is brushless; FUEL is a performance tier.
• Buying FUEL and leaving it in Mode 3. Use Mode 1 for small screws or you lose the main advantage you paid for.
• Pairing a FUEL tool only with the smallest pack and expecting full performance on lags.
• Finishing critical bolts with an impact driver. Anything with a torque spec needs a torque wrench.

Frequently asked questions