StudPro 2500 DESCRIPTION: Incorporates the latest solid state technology into a compact and rugged capacitor discharge stud welder. This system has the capability to weld studs and pins ranging from 14ga. through 1/4" full flanged stainless steel stud. Great for Mild Steel,Stainless Steel, and Aluminum Exludes Cupped Head Pins  NEW FEATURE Intuitive Touchscreen Interface with Preset values for fast, accurate, and repeatable weld settings  NEW FEATURE Set-Point Discharge: Unit discharges directly to a new set point without needing to discharge completely  NEW FEATURE Universal Input Voltage: Plug and play, no need to re-tap the machine for 110V or 220V input voltages  NEW FEATURE Low input voltage capability enables operation with long extension cords  NEW FEATURE Contact and Trigger Indicators for fast troubleshooting of hand tool and weld cable maintenance issues  NEW FEATURE Thermal and Voltage protection indicators to protect the unit from damage due to overheating ***INCLUDES (2) 5/16 ADJUSTABLE LEGS, AND A STANDARD FOOT PIECE. ACCESSORY KIT INCLUDED: COLLETS: #6, #8, #10, AND 1/4. 50EA OF FLANGED MILD STEEL CD STUDS: 6-32 X 1/2, 8-32 X 3/4, 10-32 X 3/4 AND 1/4-20 X 1. TOTAL OF 200 STUDS INCLUDED ADDITIONAL COLLETS ARE ALSO AVAILABLE .