Simple 3-Speed Setting - Adjusting between High/Mid/Low speeds (5,000, 10,000 and 15,000 RPM) Long Run Time - Drill runs up to 100 minutes per charge. Complete recharge using included mini USB charging cord in about 2 hours Lightweight Convenience - Weighs less than a cube of butter at 0.17lbs. Compact, ergonomic design allowing to hold like a pen while using. Lithium-ion Cordless Power - 3.7V high-torque overload protected Mabuch motor. Easy Operation - Keyless chuck for quick change between bits. Perfect solid mini hand drill for windshield rock chip repairs. Small, compact and efficient rechargeable rotary tool. Delta Kits' 14001 3.7V Cordless Rechargeable rotary tool is 7.16 inches long and weighs only 0.17 pounds. Perfect for drilling windshield rock chips prior to repairing.

Technical Data:
Battery Type: 3.7V Li-on/0.6Ah
Charging voltage: 5v DC(USB)
Voltage rating: 3 .7V
Collet size: 1/32” and 1/16"
Speed: 5,000/10,000/15,000 rpm