Specs from the makers' own documentation Battery compatibility built in UK retailer prices, updated daily 25+ years of trade experience
2 of 3 tools
Tool comparison

Bosch GBH 18V-18 X vs Festool KHC 18

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-18 XFestool KHC 18
Impact energy1.5J2.6J
Impact rate5000bpm4350bpm
Max hole, concrete18mm26mm
Max hole, wood18mm30mm
Max hole, steel10mm13mm
Weight (bare)1.8kg2.7kg
Weight (with battery)2.4kg3.3kg
Vibration (hammer drilling)16.6 m/s²13 m/s²
Noise97 dB(A) LpA / 105 dB(A) LwA90 dB(A) LpA / 101 dB(A) LwA
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