Stud Welding Range 10 gauge (3mm) through 58 (M16) diameter studs; based on Power Supply usedStandard FeaturesTimerControl Stud System; requires sufficient DC Power source and OCV.Lightweight and rugged Steel enclosureSolid State TimerPower on switch and front panel fuseComplete System includes Standard Duty Weld Gun, Ground Cable, Extension Cable Set and Generator Cable.Non-standard, Non-Stock system. Availability and parts substitution may be required at time of manufacture.