Chainsaw Repair

Some ideas I came across today. Fixing buggered threads.

Anyone every used stuff like this?  Thread file for fixing threads.


PRODUCT OVERVIEW
Model # 33024
Internet # 205215048

The Nicholson 4-Piece File set contains an assortment of files that will help restore damaged threads to a useful state. Restoring threads on damaged and worn bolts and pipes can help lengthen the life of each. Files come in a canvas pouch for easy storage.

    Used to restore damaged or worn external threads on bolts, pipes, etc.
    Each thread restoring file will work with 8 different thread sizes
    Type 2 red cap: ex. fine/ex. coarse bolt; 9, 1, 12, 16, 2, 27, 28, 32 tpi
    Type 7 green cap: regular pipe; 8, 1, 11 1/2, 14, 16, 18, 24, 27 tpi
    Type 8 blue cap: metric bolt; 0.8, 1. 1.25, 1.5, 1.75, 2, 2.5, 3 mm
    Type 1 black cap: regular bolt; 11, 12, 13, 14, 16, 18, 2, 24 tpi

http://www.homedepot.com/p/Nicholson-Thread-Restoring-File-Set-with-Pouch-4-Piece-33024/205215048

Looks a little crude in the video. I'd run it through a die instead...

Kev, left hand dies are available and not that pricey.  Adam Artzer bought one recently for a 3120 that the crankshaft shop booger'd the threads on somehow. Two piece clamp together dies work well when the lead-in  threads are trashed.  You clamp the die on the inner thread area and back off to clean up... 

Thanks for info Adam.


Chipsnflyin I think found that other stuff. 

Mitchell Abrasives

http://www.amazon.com/s/ref=sr_nr_n_0?fst=as%3Aoff&rh=n%3A16310091%2Cn%3A401507011%2Ck%3Amitchell+abrasives&keywords=mitchell+abrasives&ie=UTF8&qid=1426192564&rnid=16310161

I've used triangular files in the past.