아트라스 콥코 M137

The APT Model 137 Rock Drill is a versatile midsize Rock Drill used in general construction, utility work, and plant maintenance. It is designed for drilling through granite, hard faced rock, quarry drilling and for drilling secondary holes for blasting. It can also be used in conjunction with dowel hole drilling machines. This Model 137 is adaptable to wet drilling application by attaching the APT valve, wet tube and swivel assembly. 4 drilling speeds Available in wet or dry models Replaceable piston stem bearing Rubber handle grips Latch type retainer Swivel hose connector CHUCK SIZE (in) 7/8" x 4-1/4 BORE DIAMETER (in) 2-3/8 STROKE (in.) 2-5/8 BPM 2300 CFM ... 90psi 85-90 WEIGHT (lbs) 38 LENGTH (in.) 19-3/4 AIR INLET SIZE 1/2 MALE NPT