Deep Hole Drilling Machine, 1/2-inch Spade Handle has a 9 Amp heavy duty motor with hardened steel gears to insure tool longevity. Triple gear reduction increases torque for use with large diameter accessories. The 5/8-inch spindle provides increased strength in high torque applications. Easily accessible brushes can be serviced quickly for minimum down time. Lock-on button for continuous drilling or mixing. Forward/reverse rocker switch for drilling or backing out jammed bits.