Thread Repair Tool, File, Chase, Restore, Repair, and Clean Internal and External Thread: Male, Female, Inch, Metric and Pipe Thread (RT1) (3/8 Dia. Head x 2 Length x 1/8 Arbor) by Rotary Thread

Great tool to fix and reform threards that may be damaged, rusty or very gunked up.

The result isnt as pretty as using a tap or die to repair threads but it works surprisingly well and is much less expensive than buying costly tools you will probably never use again.

I purchased this tool after watching a review of a similar product on YouTube. This one is very similar if not the exact product. Works great with a high rpm impact drill. Also it does take a little getting use to at first, my suggestion is lock down whatever your working on and use two hands to control the direction of the drill as well as the recoil of the spinning bit. Also go with the direction of the drill while using. LIFE SAVER!!!

Works exactly how the description said it would.

It fix any bad thread. Highly recommended. Easy to use.

Cuts fast use with care. Quick

Its very rare these days that things actually work, and this thing worked. Saved me $985!. We have a firetruck and one of the hose reels threads had corroded to the point of no return. The replacement cost was extremely expensive as the thread is attached to one piece and can not be replaced. I gave this thing a try as a hail-mary and it actually worked. Half of the threads were on the backside that I couldnt see so I just followed the front threads and prayed that i wouldnt jump over a thread. Followed it all the way back around and kept going. Used a little Brakleen to clean off the grit and the coupler fit right on first time around. I still cant believe it.

I have to say, I was skeptical but this tool really got me out of a bind! I was rebuilding a rearend on a car and somewhere along the line the threads by the hubs were damaged. I could not get the nut to start and it was clear to see the malformed threads. After going over the threads a few times with this bit in a Dremel, the nut went right on. Saved me a ton of rework and a trip to the machine shop - or having to purchase a massive die. The price is a no-brainer, I highly recommend.

I bought it to use in my shop in place of a thread file. Its smaller than I expected but thats a good thing. Has been useful and effective.

Im not sure this product really repaired the threads. I had some threads on an M12x1.0 that were smashed in a small area that made it difficult to thread a nut. This tool is just a grinder and you need to be cautious about grinding too much. While it worked in that I could thread the nut on it was mostly due to the fact that this basically removed the threads in the spot entirely. If you arent careful you could potentially cross cut the threads. I think this may work better on larger thread pitches like 1.25+ but on fine threads like 1.0 its more difficult. The product worked but for the money a die or chaser still works better.