Head to head
Bosch Professional GSB 18V-90 C vs Milwaukee M18 FHSAG125XPDB
The Bosch Professional GSB 18V-90 C is a 18v brushless combi drill/driver with bluetooth connectivity. The Milwaukee M18 FHSAG125XPDB is a 18v brushless braking angle grinder with paddle switch.
Last reviewed 13 September 2026
Specifications side by side
| Bosch Professional GSB 18V-90 C | Milwaukee M18 FHSAG125XPDB | |
|---|---|---|
| No-load speed | 0-630 / 0-2100 rpm | 9000 rpm |
| Max torque | 65 / 36 Nm (hard/soft) | - |
| Chuck | 13mm metal | - |
| Weight | 1.2 kg (excl. battery) | - |
| Impact rate | 29,500 bpm | - |
| Disc diameter | - | 125mm |
| Spindle thread | - | M14 |
Sources: Bosch Professional GSB 18V-90 C, Milwaukee M18 FHSAG125XPDB. 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 M18 FHSAG125XPDB if...
This grinder is bought by fabricators and site users who want an active braking cordless grinder to replace a corded 125mm unit. The paddle switch version is preferred on tool-hire counters for its familiar corded-style trigger.
Full M18 FHSAG125XPDB specifications →Common questions
What is the difference between the Bosch Professional GSB 18V-90 C and the Milwaukee M18 FHSAG125XPDB?
The Bosch Professional GSB 18V-90 C is a 18V brushless combi drill/driver with Bluetooth connectivity; the Milwaukee M18 FHSAG125XPDB is a 18V brushless braking angle grinder with paddle switch.
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