Head to head
Bosch Professional GSB 18V-90 C vs Karcher Puzzi 10/1
The Bosch Professional GSB 18V-90 C is a 18v brushless combi drill/driver with bluetooth connectivity. The Karcher Puzzi 10/1 is a compact spray extraction machine for carpet and upholstery cleaning.
Last reviewed 13 September 2026
Specifications side by side
| Bosch Professional GSB 18V-90 C | Karcher Puzzi 10/1 | |
|---|---|---|
| Weight | 1.2 kg (excl. battery) | 10.7 kg |
| Max torque | 65 / 36 Nm (hard/soft) | - |
| Chuck | 13mm metal | - |
| No-load speed | 0-630 / 0-2100 rpm | - |
| Impact rate | 29,500 bpm | - |
| Fresh/waste water tank | - | 10 / 9 litres |
| Fan power rating | - | 1250 W |
| Pump power rating | - | 40 W |
Sources: Bosch Professional GSB 18V-90 C, Karcher Puzzi 10/1. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GSB 18V-90 C if...
This combi drill sits in Bosch Professional's Biturbo 18V range for builders who want connected tool tracking alongside solid drilling performance. It is a common counterpart to the corded GBH 2-28 F for buyers moving their kit over to battery power.
Full GSB 18V-90 C specifications →Buy or hire the Puzzi 10/1 if...
The Puzzi 10/1 is a compact carpet and upholstery extraction machine bought or hired by cleaning contractors, letting agents and valeters for small to medium jobs. Its low weight and single-phase plug make it practical for vans and stairs where larger extraction units are impractical.
Full Puzzi 10/1 specifications →Common questions
What is the difference between the Bosch Professional GSB 18V-90 C and the Karcher Puzzi 10/1?
The Bosch Professional GSB 18V-90 C is a 18V brushless combi drill/driver with Bluetooth connectivity; the Karcher Puzzi 10/1 is a compact spray extraction machine for carpet and upholstery cleaning.
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