The Stanley HD01 Hammer Drill is a rotary, percussion tool for drilling in rock, concrete, or masonry using 1/4 to 1 inch SDS Plus type bits. The HD01 can also be used for drilling in wood or steel by turning percussion off and installing an optional chuck adapter.
4200 bpm and 800 rpm for high performance in a small package
Percussion ON/OFF control
Flow control to prevent overspeed