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Two copper tapered welding nozzles with 3/8 inch bore

Tweco

Tweco 12301035 Tapered Nozzle 3/8 In Bore PK2

SKU CH-CYF4-F95ZH

Tapered copper nozzle with 0.625-inch bore fits Tweco WS23T and Classic series MIG guns, sold as a pack of two

  • Size/Dimensions0.625
  • MaterialCopper
  • TypeTapered Self-Insulated
  • Tapered copper bore directs shielding gas precisely
  • Self-insulated design reduces heat transfer to the torch
  • Fits WS23T, Classic No. 2, 3, 4, WM 250 and WM 400 guns
  • Pack of two nozzles keeps a spare ready

Tweco 12301035 Tapered Nozzle 3/8 In Bore PK2

The Tweco 12301035 is a tapered, self-insulated welding nozzle with a 0.625 inch bore, supplied as a pack of two. Made from copper, it is compatible with Tweco WS23T series guns and Classic No. 2, No. 3 and No. 4 models, as well as WeldSkill WM 250 and WM 400 torches. It suits welders replacing worn tips on these specific Tweco-compatible torches.

Practical limits of the tapered copper design

The tapered bore concentrates shielding gas but restricts access in tight joints compared to straight-bore nozzles. Copper conducts heat efficiently, so the tip wears faster under continuous high-amperage runs than heavier-duty alternatives. The self-insulated design eliminates a separate insulator, yet it fits only the listed Tweco-compatible series; it will not thread onto other gun models.

Highlights

  • Tapered copper bore directs shielding gas precisely
  • Self-insulated design reduces heat transfer to the torch
  • Fits WS23T, Classic No. 2, 3, 4, WM 250 and WM 400 guns
  • Pack of two nozzles keeps a spare ready

Specifications

BrandTweco
Size/Dimensions0.625
MaterialCopper
TypeTapered Self-Insulated

Questions about this item

Should I choose the tapered or straight bore version of this Tweco nozzle?

This listing only offers the tapered self-insulated copper nozzle with a .625 bore diameter.

What does the 3/8 inch bore mean when I fit this nozzle to my Tweco WS23T gun?

The .625 bore matches 3/8 inch and fits Tweco WS23T, Classic No. 2, 3, 4, WeldSkill WM 250 and WM 400 guns for proper gas coverage.

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