Head to head
Bosch Professional GSB 18V-90 C vs Stihl TS 420
The Bosch Professional GSB 18V-90 C is a 18v brushless combi drill/driver with bluetooth connectivity. The Stihl TS 420 is a petrol cut-off machine for 350 mm cutting wheels.
Last reviewed 13 September 2026
Specifications side by side
| Bosch Professional GSB 18V-90 C | Stihl TS 420 | |
|---|---|---|
| Weight | 1.2 kg (excl. battery) | 9.8 kg |
| Max torque | 65 / 36 Nm (hard/soft) | - |
| Chuck | 13mm metal | - |
| No-load speed | 0-630 / 0-2100 rpm | - |
| Impact rate | 29,500 bpm | - |
| Displacement | - | 66.7 cm3 |
| Power | - | 3.20 kW |
| Cutting wheel | - | 350 mm |
Sources: Bosch Professional GSB 18V-90 C, Stihl TS 420. 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 TS 420 if...
A hand-held petrol cut-off saw for cutting concrete, stone, kerbs and pipe. Used by groundworkers, utilities crews and landscapers on road and paving jobs.
Full TS 420 specifications →Common questions
What is the difference between the Bosch Professional GSB 18V-90 C and the Stihl TS 420?
The Bosch Professional GSB 18V-90 C is a 18V brushless combi drill/driver with Bluetooth connectivity; the Stihl TS 420 is a petrol cut-off machine for 350 mm cutting wheels.
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