0.3-3.4mm 3mm Shank Electric Grinder Keyless Drill Chuck for Rotary Tool-SL,for Rotary Tool-SL 0.3-3.4mm 3mm Shank Electric Grinder Keyless Drill Chuck, etc, Available in electric grinder, 1 x Keyless Drill Chuck, The drill can be speed up by adopting this chuck and only by hands, it is also can play the role of adapter converter,Suitable for installing in electric grinder, nail machine, engraving machine, Chuck for Rotary Tool-SL 0.3-3.4mm 3mm Shank Electric Grinder Keyless Drill.