Below are the specifications for the 650S4-1
Weight
4.5 lbs. (2.04 kilos)
Driving Power
340 in.-lbs.
Operating Pressure
70 - 120 PSI
Magazine Capacity
160 Staples
Fastener Gauge
16-Gauge, 1/2" Crown
Fastener Range
1" - 2" 16-Gauge Staples
Thread Fitting Type
1/4" NPT