80 w drill bit sharpener. fast, simple and efficient. for carbon steel, hss and cobalt. no-load rotational speed: 4,200 min-¹, sharpening angle: 118°, ø hole: 16 mm, ø wheel: 79 mm, ø drill bit: 3 - 13 mm, sound power level: 96 db, 230 v ~ 50 hz