M18 BIW38 Impact Wrench

£120.95at Tooled Up · + £5.95 delivery · Available to order

View at Tooled Up › We may earn a commission

‹ Impact Wrenches

M18

Milwaukee M18 BIW38-0 18V 3/8″ Square Impact Wrench (Body Only)

Impact Wrenches · Milwaukee M18

Milwaukee M18 BIW38-0 18V 3/8″ Square Impact Wrench (Body Only)

Name: Milwaukee M18 BIW38-0 18V 3/8″ Square Impact Wrench (Body Only)
Brand: Milwaukee
SKU: M18BIW38-0
Availability: BackOrder

210Nm1-speed1.2kg bare3 years (with registration)

Milwaukee M18 compact 3/8" impact wrench. 210Nm, 0–2,450rpm, 3,350ipm. 1.2kg bare (derived). Body only.

Adds it to My Tools, kept on this device

Lowest price we track

£120.95at Tooled Up · + £5.95 delivery · Available to order

View at Tooled Up ›

Compare retailersTotal with delivery

Tooled Up Lowest£120.95 + £5.95 delivery · Available to order£126.90View ›

My Tool Shed£120.95 + £5.95 delivery · Available to order£126.90View ›

Prices from UK retailer feeds, updated daily.We may earn a commission

210Nm

Max torque

1.2kg

Weight (bare)

3/8" Square

Square drive

Where it sits among 3/8" drive impact wrenches

Scaled against the 6 impact wrenches with a 3/8" drive we list, so other sizes aren't in the mix. Not a score: bigger isn't always better for your job.

Max torque210Nm

140Nm lowestMakita TW140Dhighest 406NmDeWalt DCF923

Impacts per minute3,350

3,200 lowestMakita TW140Dhighest 4,000Makita DTW302

Weight (bare)1.2kg

0.8kg lightestMakita TW140Dheaviest 1.2kgThis one

Max speed2,450rpm

2,400rpm lowestMakita DTW180highest 3,200rpmMakita DTW302

Compare it with: + Makita DTW180 + DeWalt DCF923 + Einhell TP-CW 18 Li BL + Bosch Green UniversalImpactDrive 18V-350

Full specs

From Milwaukee's own documentation. Checked 26/09/2026. Report a spec error ›

Performance

Max torque210 Nm

Speed settings1

No-load speed0–2450

Impacts per minute3,350

Impact mechanismStandard

Voltage18V

Square drive3/8" Square

Physical & Build

Weight (bare)1.2 kg

Weight (with battery)1.9 kg

LED work light✓ Yes

Belt clip✓ Yes

Noise level94.1 dB(A) LpA / 105.1 dB(A) LwA

The verdictOur take

The M18 BIW38 is the 3/8in version of the BIW12: 210Nm, compact and light, for mechanical and plant work on smaller fixings.

Powered by Milwaukee M18 · 11

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

M18B2 2.0Ah · 36Wh 0.4kg 1.6kg from £56.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18HB3 3.0Ah · 54Wh 0.7kg 1.9kg from £64.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18B4 4.0Ah · 72Wh 0.7kg 1.9kg from £57.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18B5 5.0Ah · 90Wh 0.7kg 1.9kg from £59.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18B5-CR 5.0Ah · 90Wh 0.7kg 1.9kg from £87.95at Tooled Up + £6.95 delivery View at Tooled Up ›

M18HB5 5.0Ah 0.79kg 1.99kg No retailer price yet About this battery ›

M18HB5-CR 5.0Ah 0.79kg 1.99kg No retailer price yet About this battery ›

M18HB5.5 5.5Ah · 99Wh 1.1kg 2.3kg 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.