Specs from the makers' own documentation Battery compatibility built in UK retailer prices, updated daily 25+ years of trade experience
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Tool comparison

Bosch GBH 18V-21 vs Milwaukee M18 FH

They differ in 5 of 5 areas. Specs, battery platforms and every way each one is sold, from the makers' own figures.

They differ in 5 of 5 areas

No overall winner: these are the figures that separate them, from each maker's own documentation.

SpecBosch GBH 18V-21Milwaukee M18 FH
Impact energy2J2.5J
Impact rate5100bpm4800bpm
Max hole, concrete21mm26mm
Max hole, wood30mm28mm
Weight (bare)2.4kg3.2kg
Weight (with battery)3kg3.9kg
Vibration (hammer drilling)15.5 m/s²15.9 m/s²
Vibration (chiselling)12.7 m/s²14.2 m/s²
Noise93 dB(A) LpA / 101 dB(A) LwA95.6 dB(A) LpA / 103.6 dB(A) LwA
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