Description: Material:Copper alloy Conductive mouth aperture: 0.8mm/0.03inch The welding torch nozzle applies to MB15AK and MIG Suit for home DIY jobs and light duty small business projects Easy to use, good conductivity, especially for a welding job Specification: 23 Pcs: 5 pieces nozzles,5 pieces connecting rod,10 pieces conductive mouth,2 pieces insulating sleeve,1 piece wrench 20 Pcs :2 pieces connecting rod,4 pieces nozzles,10 pieces conductive mouth,2 pieces insulating sleeve,1 piece wrench,1 piece elbow pipe 24 Pcs:10 pieces conductive mouth,7 piece nozzles,7 pieces connecting rod 18 Pcs:2 pieces connecting rod,4 pieces nozzles,10 pieces conductive mouth,2 pieces insulating sleeve 80 Pcs:10 pieces nozzles,10 pieces connecting rod,60 pieces conductive mouth Size Chart: Nozzle diameter 0.8mm/0.003inch Nozzle length: 25mm/0.98inch Connecting rod length: 42mm/1.65inch Nozzle length: 53mm/2.09inch Package Includes: As you choose Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!