Description APT M115 Rock Drill Model 109 – 9 lb. class Clockwise rotation Stop-rotation feature Lightweight cast alum. handle Built-in automatic oiler Model 115 – 15 lb. class Stop-rotation feature Counterclockwise rotation Built-in automatic oiler Latch-type retainer Lightweight cast alum. handle Model 137 – 30 lb. class 4 drilling speeds Replaceable piston stem bearing Available wet or dry Counterclockwise rotation Rubber handle grips Model 155 – 60 lb. class 3 drilling speeds Replaceable piston stem bearing Built-in automatic oiler Available wet or dry Counterclockwise rotation Rubber handle grips
