Head to head
Bona FlexiSand 1.9 vs Bosch Professional GBH 2-28 F
The Bona FlexiSand 1.9 is a single-disc rotary floor sanding and buffing machine. The Bosch Professional GBH 2-28 F is a corded sds-plus rotary hammer for drilling and light chiselling.
Last reviewed 13 September 2026
Specifications side by side
| Bona FlexiSand 1.9 | Bosch Professional GBH 2-28 F | |
|---|---|---|
| Weight | 50kg (plus optional 11kg magnetic weight) | 3.1 kg |
| Power | 1.9kW | - |
| Voltage | 230V, 50Hz, 11A | - |
| Disc diameter | 407mm (16in) | - |
| Power input | - | 880 W |
| Impact energy | - | 3.2 J |
| No-load speed | - | 0-900 rpm |
| Impact rate | - | 0-4000 bpm |
| Chuck | - | SDS-plus |
Sources: Bona FlexiSand 1.9, Bosch Professional GBH 2-28 F. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the FlexiSand 1.9 if...
A single-disc rotary sander used for buffing, screening and light sanding rather than heavy stock removal, which is why floor contractors keep one alongside a belt or drum sander rather than instead of one. Its 407mm disc and 1.9kW motor put it in the same bracket as other single-phase rotary buffers sold through UK flooring trade counters.
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Buy or hire the GBH 2-28 F if...
The GBH 2-28 F is a long-running corded SDS-plus hammer that hire desks and merchants keep in stock as a dependable, easily serviced drill for concrete and masonry. It suits users who want a mains tool that never needs charging over a cordless equivalent.
Full GBH 2-28 F specifications →Common questions
What is the difference between the Bona FlexiSand 1.9 and the Bosch Professional GBH 2-28 F?
The Bona FlexiSand 1.9 is a single-disc rotary floor sanding and buffing machine; the Bosch Professional GBH 2-28 F is a corded SDS-plus rotary hammer for drilling and light chiselling.
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