Reconditioned by manufacturer Dcd771 features two speed transmission (0-450/ 0-1500 RPM) Dcd771 high performance motor delivers 300 unit watts out (UWO) of power ability completing a wide range of applications Dcf885 compact (5. 55" Front to back), lightweight (2. 8 lbs) design fits into tight areas Dcf885 one-handed loading 1/4" Hex chuck accepts 1" Bit tips