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‹ Mitre Saws
18V/54V FlexVolt · Brushless
DCS778 Mitre saw No product photo yet
Mitre Saws · DeWalt 18V/54V FlexVolt

DeWalt DCS778N-XJ 54V 250mm Single-Bevel Brushless Cordless Sliding Mitre Saw (Body Only)

54V XR FlexVolt brushless 250mm single-bevel cordless sliding mitre saw. 305 × 85mm crosscut at 90°. 50° mitre both ways, 48° bevel. XPS LED shadow-line cut guide. Body only.

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250mm
Blade
305 × 85mm
Crosscut (90°)
50° L / 50° R
Mitre range
15.8kg
Weight (bare)

Where it sits among 250mm mitre saws

Scaled against the 7 mitre saws with a 250mm blade we list, so other sizes aren't in the mix. Not a score: bigger isn't always better for your job.

Weight (bare)15.8kg
14.45kg lightestEinhell TC-SM 2534/1 Dualheaviest 23kgDeWalt DWS727
Max cut width (90°)305mm
305mm lowestThis onehighest 340mmEinhell TC-SM 2534/1 Dual
Max cut height (90°)85mm
75mm lowestEinhell TC-SM 2534/1 Dualhighest 85mmThis one
Max bevel angle48°

Full specs

From DeWalt's own documentation. Checked 24/09/2026. Report a spec error ›

Cutting Capacity

Crosscut at 90°305 × 85mm
Crosscut at 45° mitre215 × 85mm
Crosscut at 45° bevel305 × 58mm
Crosscut compound 45°/45°215 × 48mm
Cut-line guideLED Shadow Line

Blade

Blade diameter250 mm
Blade bore30 mm

Ranges & Type

Sliding head✓ Yes
Rail designSliding rail (rear clearance)
Mitre range50° L / 50° R
Bevel range48°
Bevel typeSingle bevel

Power & Motor

Voltage54V
MotorBrushless
No-load speed4,100 rpm

Dust Extraction

Dust bag included✓ Yes
Dust port sizeAirLock
Extractor hose✓ Fits DeWalt AirLock extractor hoses directly (6 extractors listed)
Extractor auto-startNo

Physical & Build

Weight (bare)15.8 kg
Weight (with battery)16.88 kg
LED work light✓ Yes
Noise level91 dB(A) LpA / 100 dB(A) LwA
The verdictOur take

The DCS778 is the cordless, brushless 250mm single-bevel slide, a FlexVolt saw cutting a wide 305 × 85mm at 90° with the XPS shadow line, the cordless take on the high-capacity DWS778. It stays single bevel. We rate it excellent cordless capacity for FlexVolt owners; if you bevel both ways the dual-bevel DCS727 is the sibling, and for full 305mm reach look at the DCS781.

Powered by DeWalt 18V/54V FlexVolt · 4

All 4 batteries that fit this tool, smallest first. Kits and chargers ›

DCB546 6.0Ah · 108Wh 1.08kg 16.88kg from £99.95at Tooled Up + £5.95 delivery View at Tooled Up ›
DCB547 9.0Ah · 162Wh 1.46kg 17.26kg from £119.95at Tooled Up + £6.95 delivery View at Tooled Up ›
DCB548 12.0Ah · 216Wh 1.46kg 17.26kg from £229.95at Tooled Up + £5.95 delivery View at Tooled Up ›
DCB549 15.0Ah · 270Wh 2.12kg 17.92kg from £259.95at Tooled Up + £5.95 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.

Warranty · 3yr

Up to 3 years1 year as standard, 3 once you register it with DeWalt
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Register within 28 days of buying Own one? Add it to My Tools and we'll remind you before the 28 days run out

Register within 4 weeks. Batteries/chargers excluded (PowerStack eligible). Nailers and other fastening tools are excluded and keep 1 year. Kit tools registered individually.

Warranty terms are set by the maker and can change. Always confirm current cover on their site before you buy.

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