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

HiKOKI DH1826DC vs Bosch GBH 18V-21

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.

SpecHiKOKI DH1826DCBosch GBH 18V-21
Impact energy3.2J2J
Impact rate4300bpm5100bpm
Max hole, concrete26mm21mm
Max hole, wood27mm30mm
Weight (bare)3.3kg2.4kg
Weight (with battery)3.86kg3kg
Vibration (hammer drilling)13.8 m/s²15.5 m/s²
Vibration (chiselling)9.9 m/s²12.7 m/s²
Noise94 dB(A) LpA / 102 dB(A) LwA93 dB(A) LpA / 101 dB(A) LwA
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