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 GSB 18V-21 vs Bosch Green AdvancedImpact 18V-80

They differ in 5 of 6 areas. Specs, battery platforms and every way each one is sold, from the makers' own figures.

They differ in 5 of 6 areas

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

SpecBosch GSB 18V-21Bosch Green AdvancedImpact 18V-80
Max torque55Nm82Nm
Top speed1800rpm1950rpm
Blows per minute27000bpm29250bpm
Max drilling, wood35mm40mm
Max drilling, steel10mm13mm
Max drilling, masonry10mm13mm
Weight (with battery)1.9kg2kg
Vibration (hammer drilling)11 m/s²10 m/s²
Vibration (drilling metal)< 2.5 m/s²3 m/s²
Noise88 dB(A) LpA / 99 dB(A) LwA90 dB(A) LpA / 98 dB(A) LwA
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