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11401104 - Tweco 14-45 Contact Tip .045 (25 Pack)

Packaging: pack of 25
$2.70/EA $48.25/pack of 25 only $1.93/EASave 29%

Usually ships within 3-5 business days

OVERVIEW

Reliable Performance with Tweco 14-45 Tips

Every welder knows that the contact tip is the unsung hero of the MIG gun. It takes the heat, transfers the current, and guides the wire right into the puddle. When your tip goes bad, your whole day goes bad—arc wandering, burn-backs, and stuttering feeds can ruin a perfect bead in seconds. That’s why pros stick with genuine Tweco 14-45 contact tips. Designed for running 0.045" wire, these tips are the industry standard for a reason: they work. Whether you are fabricating structural steel, repairing heavy equipment, or running production parts, these tips provide the consistency you need to keep the hood down and the sparks flying.

These tips fit the classic Tweco guns you likely have hanging on your machine right now—the No. 2, No. 3, and No. 4, as well as the Spray Master series. They thread in easily with a 1/4"-28 thread and seat firmly against the diffuser to ensure maximum conductivity. The copper alloy construction handles the heat of long welds, but like all consumables, they eventually wear out. As the wire slides through, it wears the hole into an oval shape, which kills your aim and makes the arc unstable. Having a fresh pack of 25 on hand means you never have to try and squeeze "just one more bead" out of a dead tip.

This 25-pack is perfect for the busy shop. You aren't buying them one by one; you're stocking up so your team has what they need. The 0.045" size is a workhorse gauge for medium-to-heavy fabrication, and these standard-duty tips are matched perfectly for that application. Don't let a $2 part ruin a critical weld. Swap your tips regularly, keep your liner clean, and use quality Tweco consumables to ensure your machine runs as smoothly as your hand moves.

Additional Information
Brand:Tweco
Item:Contact Tip
Wire Size:0.045"
Packaging Description:25 Per Ea
Series:14 Series
Material:Copper Alloy
Thread Size:1/4"-28 UNF
Compatible Guns:Tweco #2, Tweco #3, Tweco #4, Spray Master
Bore Diameter:0.054" (1.4mm)

INCLUDED

  • 25 x Tweco 14-45 Standard Contact Tips (0.045")

APPLICATIONS

  • General Fabrication
  • Structural Steel Welding
  • Automotive Manufacturing
  • Heavy Equipment Repair
  • Shipbuilding
  • Production MIG Welding

FAQ

The Tweco 14-45 fits standard Tweco No. 2, No. 3, and No. 4 MIG guns, as well as the Tweco Spray Master series and many other Tweco-style guns that accept 14-series consumables.

This contact tip is designed for use with 0.045-inch (1.2mm) welding wire.

The tip features a standard 1/4"-28 UNF thread.

This package contains 25 individual contact tips.

This is the Standard version. Tweco also manufactures a Heavy Duty (14H) series which has a thicker outer diameter for higher amperage applications.

As wire feeds through the tip, it wears the bore into an oval shape ('keyholing'), which causes poor electrical contact, arc wandering, and unstable wire feeding.

While physically possible if the size matches, aluminum wire expands more when heated. It is often recommended to use tips specifically designed for aluminum (often marked with an 'A') which have slightly larger bore tolerances to prevent seizing.

They are made from a high-quality copper alloy designed for optimal electrical conductivity and heat resistance.