Article

Milwaukee 18v Circular Saw

Milwaukees 18V circular saw lineup splits into two main families: the standard M18 (brushed) and the M18 FUEL (brushless)

Quick answer

Milwaukee's 18V circular saw lineup splits into two main families: the standard M18 (brushed) and the M18 FUEL (brushless). FUEL models deliver more power, longer runtime, and advanced features, while brushed models offer a lower entry price. The right choice depends on your cutting frequency, material, and budget.

Main explanation

Step 1: Identify your primary material

Milwaukee offers circular saws for wood and metal. For wood, the standard M18 saws (e.g., model 2630-20) are designed for wood surfaces. For metal, the M18 FUEL line includes a 5-3/8 in. metal-cutting circular saw. If you cut both, a general-purpose wood saw with a metal-cutting blade may work, but the dedicated metal saw is optimized for that task.

Step 2: Choose blade size

Blade size determines depth of cut.

6-1/4 in. – Found on the brushed M18 model 2630-20. Suitable for dimensional lumber and plywood.
6-1/2 in. – Available on M18 FUEL models like 2833-20. Offers slightly deeper cuts.
7-1/4 in. – The standard for framing. The M18 FUEL 7-1/4 in. saw (model 2834-20) is the most powerful option. The kit (2732-21hd) includes a battery, charger, and bag and claims up to 750 cuts per charge.
5-3/8 in. – Used on the M18 FUEL metal-cutting saw. Intended for cutting metal studs, rebar, and pipe.

Step 3: Decide between brushed and brushless (FUEL)

Brushed (M18) – The 2630-20 has a brake that stops the blade quickly when the trigger is released. The operator's manual warns that blade washers and bolts are specially designed for safety. Brushed motors are less efficient but cost less upfront.
Brushless (M18 FUEL) – Uses a POWERSTATE brushless motor that can spin up to 5,800 RPM. This delivers more torque, longer runtime, and less maintenance. Nearly all FUEL models include a brake.

Step 4: Choose kit vs. tool-only

Tool-only – Best if you already own M18 batteries. Models like 2834-20 (7-1/4 in.) are sold bare.
Kit – The 2732-21hd kit includes a 7-1/4 in. saw, an M18 battery, a rapid charger, and a carrying bag. Kits are convenient for new users or those expanding their M18 battery collection.

Safety constraints

All Milwaukee circular saws require reading the operator's manual. The manual for the 2630-20 warns against using improper blade washers and bolts, as they are specially designed for the saw. Always follow safety instructions for kickback, eye protection, and proper blade installation.

Practical takeaways

For heavy-duty framing or frequent use → M18 FUEL 7-1/4 in. kit (2732-21hd) gives you the most cuts per charge and the highest power.
For occasional DIY or remodeling → Brushed M18 6-1/4 in. (2630-20) is cheaper and still has a brake.
For metal cutting → M18 FUEL 5-3/8 in. metal-cutting saw (tool-only) is purpose-built.
Always use the correct blade washers and bolts as specified in the manual to avoid injury.