Adjustable Hand Reamer Tool H4 to H14 Sizes - 15/32" to 1-1/2” Reaming Tool for Precise Hole Finishing with 6 Carbon Steel Blades - Hand Tools Reamers for Metal & Wood - 11.90mm - 38.10mm

Took me a little while to get the hang of how to use these tools, but they are ingenious. Allows for the reaming out of stripped screw/bolt holes into ones the next size up. As someone who works on motorcycles a lot; I find the weaknesses in lots of bikes to be the fasteners, so cross-threads and boogered up holes are common. This is the nuclear option - just make a new hole - before you have to replace whatever it is you're fastening or bolting into (like an oilpan, valve covers, etc).

Never know what's coming in the door next. 1st use was to open up 12 - 1.75" long pieces of black iron pipe from 1.25" to 1.335". All ended up within .001.

They come in handy. Had some bronze bushings that needed to be enlarged but to a precise size. These did the trick. Would have been a 4 star, but one of them broke on me. I’d buy them again though. I don’t use them enough to warrant buying high quality reamers. And I don’t need Uber precision for what I do.

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The first time I used this the 5/16th reamer the shaft bent I would suggest buying something better. I bought these for a 1 time use and it did not even go that far. I should have known better

Works well and FAST SHIPPING!