WeldingCity TIG Torch Accessory Kit AK2 Collet-Cup-Tungsten-Cap 0.040"-1/16"-3/32" for Torch 17 Series AK2 TIG torch accessory kit (AK2) for regular set-up in torch #17 series. 1 long back cap 57Y02, 1 short back cap 57Y04 3 collets 0.040", 1/16" and 3/32" (10N22, 10N23 and 10N24). 3 collet bodies 0.040", 1/16" and 3/32" (10N30, 10N31 and 10N32) 3 Alumina ceramic cups #4, #5 and #6 (10N48, 10N49 and 10N50). 3 Thoriated (2%) Tungsten (Red) electrodes 0.040"x7", 1/16"x7" and 3/32"x7".