Below are the specifications for the 438S2R-1
Weight
4.7 lbs. (2.13 kilos)
Driving Power
230 in.-lbs.
Operating Pressure
70 - 120 PSI
Magazine Capacity
160 Staples
Fastener Gauge
16-Gauge, 1" Crown
Fastener Range
1/2" - 1 1/2"
Thread Fitting Type
1/4" NPT