Quick change keyless drill chuck: from SDS-plus to 3 jaw chuck literally in a second. 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. Requires SDS adapter to drill into steel or wood