The dewalt d25721k sds max combination hammer drill is the ideal choice for drilling anchor fixing and through holes in concrete and masonry from 12 to 48 mm in diameter core drilling up to 115 mm with the active vibration control system incorporating a floating rear handle and damped side handle to reduce vibration and improved used comfort this combination drill benefits from a rotation stop and lock on switch for demolition applications in brick masonry and light chasing in concrete comp