Renovation grinders

The 130 mm surface-restoration grinder, for taking off old coatings, adhesive residue and floor finishes. Speed varies from about 2,200 to 6,500 rpm, so the same machine can grind concrete and lift a soft coating without burning it. Two features do the work. A guide table sets removal height so the machine takes a controlled depth rather than digging in — the difference between levelling a floorboard and gouging it. And the brush segment folds back, letting the disc reach right into a corner and up to a skirting, which is where the hand-scraping usually starts. It also signals the extractor over Bluetooth, so suction starts with the tool.