Tweco 1110-1204 Mig Contact Tip 0.045 in 25 Pack

Product Description

The TWECO 1110-1204 is a heavy-duty MIG contact tip designed for 0.045-inch wire with a 0.054-inch nominal bore ID and a 1-inch length. Machined from 122 DHP copper alloy tubing, it delivers consistent inside diameter surface finish held to a tolerance of plus or minus 0.003 inches. The threaded M6 x 1.0-6g design ensures solid contact with a gas diffuser when installed on a MIG gun. Licensed welding technicians and MIG welders install this tip as a standard consumable replacement during routine gun maintenance. It is sold in packs of 25.

This contact tip is rated for heavy-duty welding applications up to 200 amps and is compatible with Tweco No. 1 MIG guns in the 160 to 250 amp range. The thick-walled copper alloy construction acts as a heat sink, drawing heat away from the arc source to extend service life. A quarter-turn clockwise twist locks the tip in place and can also expose a fresh wear point when the original surface is worn, effectively doubling tip life. Each tip is stamped with the part number and wire diameter for fast field identification.

Key Features

• 0.045-inch wire diameter, 0.054-inch nominal bore ID, inside diameter tolerance held to plus or minus 0.003 inches
• Machined from extruded or gun-drilled 122 DHP copper alloy tubing for consistent, smooth bore surface
• M6 x 1.0-6g threaded style ensures proper seating against gas diffuser
• Quarter-turn clockwise locking mechanism increases electrical contact surface area and conductivity
• Thick-walled design acts as a heat sink to conduct heat away from the arc source
• Rotating to expose a new wear point doubles usable tip life
• Part number and wire diameter stamped on each tip for easy identification

Compatibility

Compatible with Tweco No. 1 MIG guns rated 160 to 250 amps. Suitable for slip-on or thread-on nozzle configurations as specified for the Tweco 11 Series heavy-duty contact tip family.

Installation Notes

Installation is performed by qualified welding technicians as part of standard MIG gun consumable maintenance. Disconnect and de-energize the welding machine before replacing the contact tip. Thread the tip fully into the gas diffuser by hand, then use the quarter-turn twist to lock it in place. Do not overtighten or use impact tools, as this can distort the bore and reduce conductivity.