

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The TWECO 1150-1234 is a threaded MIG contact tip designed for use with 0.062 inch (1/16 inch) diameter welding wire. It measures 1.97 inches in length and features a 0.073 inch nominal bore ID with a 0.345 inch OD. Machined from 122 DHP copper alloy tubing, the tip delivers consistent electrical conductivity and a smooth inside diameter surface held to a tolerance of plus or minus 0.003 inches. The 5/16 inch-18 UNC-2A thread ensures secure engagement with MIG gun gas diffusers. Rated for heavy-duty welding applications up to 500 amps, this tip is sold in packs of 25 and is marked with the part number and wire diameter for fast identification on the job.
The 1150-1234 contact tip is suited for heavy-duty MIG welding operations where consistent wire feed and reliable electrical contact are critical. It is designed for use in industrial and commercial welding environments running up to 500 amps. The threaded design mates with compatible gas diffusers on MIG welding guns. Each tip is marked with the wire diameter and part number, reducing the chance of misidentification when swapping tips during production or field work. Welding professionals and MIG gun service technicians are the primary installers of this consumable.
Designed as an OEM-style replacement contact tip for MIG welding guns that accept 5/16 inch-18 UNC-2A threaded tips and 0.062 inch wire diameter.
Contact tips are installed and replaced by welding technicians as a routine MIG gun consumable. Always power down and disconnect the welding machine before replacing a contact tip. Thread the tip hand-tight into the gas diffuser, then snug with appropriate pliers — do not overtighten, as this can distort the threads or damage the diffuser seating surface. Inspect the bore for wear or spatter buildup regularly and replace when wire feeding becomes inconsistent.
Thanks for subscribing!
This email has been registered!