Lincoln Electric KP4753-116 TIG Torch Collets & Collet Bodies; Product Type: Collet Body ; Hole Diameter: 0.0630 ; Material: Copper Alloy ; For Use With: 9/20 TIG Torches using 1/16" Tungsten Electrodes; 9/20 TIG Torches using 1/16" Tungsten Electrod