Voltage 12V-18V Battery Capacity Ni-Cd 1.2Ah/1.3Ah/1.5Ah/1.7Ah Ni-MH 1.5Ah/1.7Ah/2.0Ah Chuck:10 or 13mm Keyless Chuck Switch: Variable With Brake or Without Brake or Single Speed Charger: 1HR or 5-7HRS Torque Setting: 6/16 Position No-Load Speed:550RPM or 0-550RPM Single Speed or Two Speed construction 0-400rpm or 0-1100rpm Package: Color Box or BMC CE GS UL approvaled