Lincoln Electric KP4752-18-B10 TIG Torch Collets & Collet Bodies; Product Type: Collet Body ; Hole Diameter: 0.1250 ; Material: Copper Alloy ; For Use With: 17/18/26 TIG Torches using 1/8" Tungsten Electrodes; 17/18/26 TIG Torches using 1/8" Tungsten