These STARTECHWELD 000068 MIG contact tips are a 25-pack of .035 inch copper tips sold as replacements for Miller and Hobart style guns such as the M10 and M15. Miller uses 000068 as its own part number for .035 tips, so this is an aftermarket equivalent. Buy it if your gun takes that tip and you run .035 wire; confirm thread and length first.
This review is based on the Amazon listing, not hands-on testing. The compatibility list is the part to check carefully.
000068 MIG contact tips at a glance
| Item | Detail |
|---|---|
| Brand and number | STARTECHWELD, 000068 |
| Tip size | .035 inch |
| Material | Copper (per the listing) |
| Pack | 25 tips |
| Package | About 4 x 3 x 1 in; 5.9 oz (per the listing) |
| Listed fit | Selected Miller and Hobart guns, including M10 and M15, and Handler series (per the listing) |
Verify the compatibility list on the current Amazon page. It is not a guarantee for every model.
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How to check the tips fit your gun
- Wire size. The tip bore must match your wire. These are .035 inch, so they pair with .035 wire.
- Compare with the old tip. Pull one tip and compare thread, overall length and shape.
- Gun model. Confirm your gun is on the listing, such as an M10 or M15. A Miller or Hobart badge alone does not guarantee fit.
- Diffuser and nozzle. Make sure the tip seats properly in your diffuser and sits at the right height in the nozzle.
- Not for aluminum. Aluminum wire needs a different tip bore and usually a spool gun or special liner.
When to replace a contact tip
A contact tip is a wear item. Change it when you see:
- Rough or inconsistent wire feeding.
- An oval or worn bore (the wire wanders).
- Burnback, where the wire welds itself to the tip.
- An unstable arc that settings do not fix.
- Spatter that cleaning will not remove.
Let the gun cool, switch off the machine and unplug it before changing consumables. Thread the new tip in until snug, and do not overtighten.
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Pros and limitations
Pros
- 25 tips cover a lot of changes for a frequent welder.
- Standard .035 size matches common mild-steel wire.
- Compact pack stores easily in a welding cart.
Limitations
- Fit depends on gun style, thread and length.
- Aftermarket tips can vary in finish and tolerance; check the first few.
- A 25-pack is more than an occasional welder needs.
Alternatives and related guides
- YESWELDER 25pk 000-068 contact tip review: another 25-pack for the same tip number
- YESWELDER MIG contact tip review: a different tip option for comparison
- MIG welding contact tips review: a general look at tip choices
- 25-piece MIG tip, diffuser and nozzle kit review: a full consumables kit
Related reviews: YESWELDER 25-pack 000-068 contact tip review, STARTECHWELD 1445 contact tips review, MIG welding contact tips review and .035 MIG contact tips review for the Millermatic 252.
Frequently Asked Questions
Do these 000068 contact tips fit my Miller or Hobart gun?
The listing names selected Miller and Hobart guns, including the M10 and M15. Check your gun model against the listing and compare the thread and length with your old tip before ordering.
What wire size do the tips take?
They are .035 inch tips for .035 wire. Using a different wire size causes poor feeding and an unstable arc.
How often should I change a MIG contact tip?
There is no fixed interval. Change it when feeding gets rough, the bore wears oval, burnback happens or the arc turns unstable. Heavy use and flux-core wire wear tips faster.
Are copper contact tips better than other materials?
Copper conducts current well and is the common choice for general MIG tips. Other alloys are sold for high-duty use, but copper is fine for most hobby work.
Bottom line
The STARTECHWELD 000068 pack is a practical bulk buy for .035 guns that use this tip. Check the thread and length against your old tip, and skip it if you weld only occasionally.
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