Lincoln Electric KP4750-040-B10 TIG Torch Collets & Collet Bodies; Product Type: Collet ; Hole Diameter: 0.0400 ; Material: Copper Alloy ; For Use With: 17/18/26 TIG Torches using .040" Tungsten Electrodes; 17/18/26 TIG Torches using .040" Tungsten E