The Festool 577234 is an 18v cordless 125mm eccentric sander. The machine is supplied as a bare unit in a systainer box. The sander has a brushless ec-tec motor which together with the li-on 18v battery can produce uninterrupted sanding in comparison to an electric machine. The sander has 2mm sanding stroke with 6000-10000 eccentric motion speed. 577594 -contains 577234 sander chip collection bag, protector stick fix sanding pad 125m soft/ht systainer sys3 M 187 2mm sanding stroke 6000-10000 eccentric motion speed 125mm pad, 27mm dust extraction port.