A portable power drill having an automatic drilling cycle for feeding a
rotating tool bit to a workpiece to effect the desired operation. The
drill uses a rotary gerotor pump to pump hydraulic fluid used in its
system, and pressurized air to operate the hydraulic pump. The drill has
a clamping assembly which clamps the unit on a workpiece before the drill
bit is advanced toward the workpiece. The drill also has an integral
drill spindle-planet carrier area which adds to its operability and
reliability.