Head to head
Bosch Professional GSB 18V-90 C vs Festool CTL 26 EI
The Bosch Professional GSB 18V-90 C is a 18v brushless combi drill/driver with bluetooth connectivity. The Festool CTL 26 EI is a mobile dust extractor for connected power tool extraction.
Last reviewed 13 September 2026
Specifications side by side
| Bosch Professional GSB 18V-90 C | Festool CTL 26 EI | |
|---|---|---|
| Weight | 1.2 kg (excl. battery) | 13.90 kg |
| Max torque | 65 / 36 Nm (hard/soft) | - |
| Chuck | 13mm metal | - |
| No-load speed | 0-630 / 0-2100 rpm | - |
| Impact rate | 29,500 bpm | - |
| Power consumption | - | 350-1200 W |
| Max airflow | - | 3900 l/min |
| Max vacuum | - | 24,000 Pa |
| Container/filter bag capacity | - | 26 / 24 litres |
Sources: Bosch Professional GSB 18V-90 C, Festool CTL 26 EI. 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 CTL 26 EI if...
The CTL 26 is the workhorse dust extractor that Festool track saw and sander owners buy to complete their system, with Bluetooth auto-start when a connected tool is switched on. It is chosen over generic site vacuums for dust class L filtration and integration with Festool's Systainer storage.
Full CTL 26 EI specifications →Common questions
What is the difference between the Bosch Professional GSB 18V-90 C and the Festool CTL 26 EI?
The Bosch Professional GSB 18V-90 C is a 18V brushless combi drill/driver with Bluetooth connectivity; the Festool CTL 26 EI is a mobile dust extractor for connected power tool extraction.
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