Heavy Duty Style Nozzle 1/2 in Bore 1/8 in to 5/32 in Tip Recess Self-Insulated Standard Slip-On for Tweco No 2 Gun Tweco Heavy Duty Style Nozzles WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Nozzle Style: Slip-On; 1/8 in to 5/32 in Tip Recess Type: 3-Pc Design (Self-Insulated); HD22 Series; Standard Used With: Tweco No. 2 MIG Gun; Tweco Spray Master 250 MIG Gun; Tweco Smoke Master 250 MIG Gun Bore Size: 1/2 in Material: 122 DHP Copper Alloy Tubing Housing; G7 Silicone Insulator; Brass Insert Includes: Housing; Insert; Insulator