Increase productivity with longer life front end consumables using Tweco® Spray Master MIG gun series with eliminator front end consumables. Combined with all the advantages of the Spray Master, this new line of mig guns helps the shop floor lower usage cost with improved operator appeal. Selecting the right nozzle for a welder's preferred "nozzle to tip relationship" on a mig gun is generally based on the application and the welder's daily welding routine

• Easy identification - part no rolled stamped on the outside surface of the brass stop
• 3-piece nozzle design - does not require an additional insulator
• Nozzle housing - cut and formed from 122 DHP copper alloy tubing
• Nozzle insert - machined from a solid brass allow and machining the internal threads to match the gas diffuser
• Nozzle insulator - made from G7 silicone material, providing the electrical insulation needed from the gas diffuser
• Nozzle threads onto the gas diffuser
• Recessed tips are generally used for higher heat applications where longer electrical stick-out is required or in cases where the nozzle may touch the work piece (tack, spot, and stitch)
• Used in light to medium-duty welding application up to 180 amp
• For traditional style guns
• Self-insulated
• Gas metal arc welding process (air- cooled)
• 21T-37 Model

Tweco® Professional 1210-1300 MIG Gun Consumable, Tapered Nozzle, Style: Thread-On, 3/4 Inch Outer Diameter x 2.224 Inch Length, 1/8 - 5/32 Inch Recessed, Connection: M11 x 1.5-6H, 122 DHP Copper Alloy, Tip Size: 3/8 Inch, Amperage: 180 amp, Series: 21 Series, Weight: 1.45 lb, For Type/Brand/Model: No. 51, 51-23 Standard Gas Diffuser, No. 1 MIG Gun