Revlon Tweezers: Bad Spot Welds

Mary bought a pair of Revlon tweezers a while ago, picking a Name Brand to avoid hassles with bottom-dollar crap:

Revlon tweezers - bad spot welds
Revlon tweezers – bad spot welds

Well, that didn’t work.

I contend that the only difference between Name Brands and the bottom-dollar crap I tend to buy is a bit of QC and a lot of price. I’ll agree that’s not strictly true, but it does fit a goodly chunk of the observed data.


I milled a recess into the corner of some scrap plastic to locate the handle end, then arranged a step block to capture the business end:

Revlon tweezers - drilling setup
Revlon tweezers – drilling setup

That setup ensures the holes go into the corresponding spots on both pieces, because I couldn’t figure out how to clamp them together and drill them both at once. I drilled the other piece with its good side up to align the holes; doing it bad side up would offset the holes if they’re not exactly along the center line.

A closer look:

Revlon tweezers - drilling fixture
Revlon tweezers – drilling fixture

Talk about a precarious grip on the workpiece!

I filed the welds flat before drilling, so the pieces lay flat and didn’t distract the drill.


  • Center-drill
  • Drill 2-56 clearance
  • Scuff up mating surfaces with coarse sandpaper
  • Apply epoxy
  • Insert screws
  • Add Loctite
  • Tighten nuts to a snug fit
  • Align jaws
  • Tighten nuts
  • Fine-tune jaw alignment
  • Apply mild clamping force to hold jaws together
  • Wait overnight
  • Saw screws and file flush
  • Done!

The clamping step:

Revlon tweezers - epoxy curing
Revlon tweezers – epoxy curing

Those nicely aligned and ground-to-fit jaws were the reason Mary bought this thing in the first place.

The screw heads look OK, in a techie sort of way:

Revlon tweezers - fixed - front
Revlon tweezers – fixed – front

The backside won’t win any awards:

Revlon tweezers - fixed - rear
Revlon tweezers – fixed – rear

But it won’t come apart ever again!

There’s surely a Revlon warranty covering manufacturing defects, printed on the long-discarded packaging, that requires mailing the parts with the original receipt back to some random address at our own expense.


4 thoughts on “Revlon Tweezers: Bad Spot Welds

  1. Step 14 – lacking loctite, stake the nut to the screw to prevent it from working itself loose with a dent made by a sharp center punch between the two

  2. Some people, of late, would have begun this by scrounging a transformer from a microwave and building a spot-welder from it. There are some cool videos on youtube showing how. I have this dead microwave taking up space in my garage for exactly that purpose… Now if only my wife’s (good thing I didn’t go with wives’) tweezers would break.

    1. I thought about soldering / welding, but didn’t want to strip / repaint the thing when I was done. The screws and nuts are, admittedly, fugly, so I’m not sure they were a net win.

      For soldering, though, I’d have used my microwave-to-soldering conversion from long ago, with carbon electrodes rather than tweezers. It still doesn’t have a case, which is starting to worry me.

      Speaking of tweezers, those SMD tweezers come in handy, too.

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