The Milescraft Orbiter 1300 is a must-have accessory for any automotive, electrical, or plumbing job Drill or drive at any angle with a keyless chuck for fast easy drill bit changes Hex shaft fits 3/8inch and larger drills Orbiter is designed with a soft grip handle for ease and comfort while working For best results use corded power drills at 1,000+ rpm. Not intended for use with drill bits larger than 3/4inch, hole saw cutters, and Auger style bits, Weight: 1.0 pounds, Manufacturer: Milescraft Inc.