APT 137 Rock Drill, 7/8 x 4-1/4in., American Pneumatic Tools, Mfr#: 5225

The Model 137 is used in general construction, utility work, and plant maintenance. It is are designed for drilling through granite, hard faced rock, quarry drilling and drilling secondary holes for blasting. It is are also used with dowel hole drilling machines. Adaptable to wet drilling application by attaching APT valve, wet tube and swivel assembly.