DEWALT Hammer Drill DWE5010 1 2 Inch Corded Driver (7.0 Amp Motor Dual Mode Variable Speed 46700 BPM Locking Side Handle Masonry Wood Steel Drilling) Roman Ogee Bit Short Beveled Jaw Design: Compact Short Beveled Jaw Design: Compact structural jaw profile permits square This professional contractor solution resolves frequent wrist injury risks from sudden rotational bind ups by integrating an advanced KickBack Control acceleration sensor that halts motor output instantaneously upon detecting hazardous torque reactions 3 Inch Core Frame: Streamlined motor housing footprint permits smooth tool access inside narrow ceiling cavities and tight corners balanced forward alignment and pulse the variable trigger to evacuate masonry dust chips natively from the channel flute