Quick change keyless drill chuck: from SDS-plus to 3 jaw chuck literally in a second. TOOL ONLY!USER BENEFITS:3 operation modes ? hammering, hammering with rotation, rotation.Ergonomic D-Shaped handle with rubberized soft grip provides more comfort and better control while minimizing hand fatigue and pain.One-touch sliding chuck for easy bit change.Easy-to-operate large trigger switch and lock-on button.Double Insulation, Variable Speed, Reversing, SDS Plus, Torque Limiter and Carry Case. Tool sold without bit.