Head to head
Bosch Professional GSB 18V-90 C vs Lagler Hummel
The Bosch Professional GSB 18V-90 C is a 18v brushless combi drill/driver with bluetooth connectivity. The Lagler Hummel is a belt sanding machine for wood floors.
Last reviewed 13 September 2026

Specifications side by side
| Bosch Professional GSB 18V-90 C | Lagler Hummel | |
|---|---|---|
| Weight | 1.2 kg (excl. battery) | 79kg |
| Max torque | 65 / 36 Nm (hard/soft) | - |
| Chuck | 13mm metal | - |
| No-load speed | 0-630 / 0-2100 rpm | - |
| Impact rate | 29,500 bpm | - |
| Motor power | - | 2.2kW |
| Sanding drum width | - | 200mm |
| Voltage | - | 230V / 50Hz |
| Belt size | - | 200mm x 750mm |
Sources: Bosch Professional GSB 18V-90 C, Lagler Hummel. 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 Hummel if...
The classic belt sander used to strip and refinish wood floors, in production since 1969 and still the reference machine flooring contractors and DIY renovators reach for. UK hire listings sometimes attribute it to Bona, the abrasives and finish brand, rather than its actual maker Lagler.
Full Hummel specifications →Common questions
What is the difference between the Bosch Professional GSB 18V-90 C and the Lagler Hummel?
The Bosch Professional GSB 18V-90 C is a 18V brushless combi drill/driver with Bluetooth connectivity; the Lagler Hummel is a belt sanding machine for wood floors.
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