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‹ Metal Cutting Saws

M18 · Brushless Milwaukee M18 FMCS66-0C Brushless 203mm Metal-Cutting Circular Saw (Body Only, Kitbox)

Metal Cutting Saws · Milwaukee M18

Milwaukee M18 FMCS66-0C Brushless 203mm Metal-Cutting Circular Saw (Body Only, Kitbox)

Name: Milwaukee M18 FMCS66-0C Brushless 203mm Metal-Cutting Circular Saw (Body Only, Kitbox)
Brand: Milwaukee
SKU: M18FMCS66-0C
Availability: BackOrder

5.89kg bare18V3 years (with registration)

18V FUEL brushless 203mm metal cutting circular saw. 66mm cut depth. Variable speed trigger. Full-metal motor housing. POWERSTATE brushless. REDLINK Plus. Rafter hook. Bare unit in blow-moulded case.

Adds it to My Tools, kept on this device

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£474.95at Tooled Up · + £5.95 delivery · Available to order

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203mm

Blade

66mm

Cut depth (90°)

4,000rpm

Blade speed

5.89kg

Weight (bare)

Where it sits among metal cutting saws

Against the 7 metal cutting saws we list. Not a score: bigger isn't always better for your job.

Cut depth at 90°66mm

43mm lowestDeWalt DCS373highest 67mmMakita CS002G

Blade speed4,000rpm

3,500rpm lowestMakita 4131highest 4,250rpmBosch GKM 18V-50

Weight (bare)5.89kg

2.2kg lightestBosch GKM 18V-50heaviest 5.89kgThis one

Compare it with: + Bosch GKM 18V-50 + DeWalt DCS383 + Makita 4131

Full specs

From Milwaukee's own documentation. Checked 21/06/2026. Report a spec error ›

Cutting

Blade diameter203 mm

Blade bore15.87 mm

Max depth (90°)66 mm

Blade included✓ Yes

Power & Motor

Voltage18V

MotorBrushless

Blade speed4,000 rpm

Dust & Extraction

Dust port sizeNone (no extraction)

Extractor auto-startNo

Physical & Build

Weight (bare)5.89 kg

Weight (with battery)6.59 kg

Case typeKitbox

Case included✓ Yes

Noise level97.2 dB(A) LpA / 108.2 dB(A) LwA

Vibration1.1 m/s²

The verdictOur take

Milwaukee's heavy-duty 203mm metal-cutting saw, a specialist tool for steel studs, sections, pipe and channel rather than timber. On spec it runs a slower 4000rpm suited to metal and cuts to 66mm, with an enclosed metal guard, which means it does not connect to a dust extractor. Two things to plan around: it does not bevel, and at 97.2 dB(A) and 5.89kg bare it is both loud and heavy, so it is firmly a job-specific saw. It sits on the M18 platform. One for metalwork and M and E trades, not a crossover tool for wood.

Powered by Milwaukee M18 · 11

All 11 batteries that fit this tool, smallest first. Kits and chargers ›

M18B2 2.0Ah · 36Wh 0.4kg 6.29kg from £56.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18HB3 3.0Ah · 54Wh 0.7kg 6.59kg from £64.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18B4 4.0Ah · 72Wh 0.7kg 6.59kg from £57.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18B5 5.0Ah · 90Wh 0.7kg 6.59kg from £59.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18B5-CR 5.0Ah · 90Wh 0.7kg 6.59kg from £87.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18HB5 5.0Ah 0.79kg 6.68kg No retailer price yet About this battery ›

M18HB5-CR 5.0Ah 0.79kg 6.68kg No retailer price yet About this battery ›

M18HB5.5 5.5Ah · 99Wh 1.1kg 6.99kg from £99.95at Tooled Up + £6.95 delivery View at Tooled Up ›

Tool weight worked out by adding each pack's weight to the bare tool, using the makers' figures. The maker's own with-battery figure can differ slightly. We may earn a commission on retailer links.