can some one tell me how a thread file works

[dreadhed]

I messed up the first couple of threads on a couple of 350x cranks.  I was told to use a thread file, but I have never used one.  If anyone can help me I would appericat it.  Here is a link to the file.  http://buy1.snapon.com/catalog/tools.asp?tool=all&Group_ID=1149&store=snapon-store
Thanks
Gabe

[Old_School]

I'd never seen those before but whenever I strip our cross thread a few threads I get a tap the same size and carefully re-tap it to open the threads back up. I would imagine that thing your looking at has the same affect. -Mark

[dreadhed]

Ok I found out what it is for.  It is for male threads.  I was told that they are easy to use & must have for the shop.  I am going to order a set to fix a axle on a Big Red that I am redoing.

[atvtrailer]

They straighten and restore threads instead of cutting new ones, which in some cases u dont have much extra to cut new threads with.

When you run the file back and forth across the threads it straightens them and cleans out anything in the threads and dont take off any metal like a tap would.

they do help out alot and work good, they are quick and easy to use, we got a set in our shop at school and they are very helpful

[gery350]

ive never used one but cant imagine how to fix a thread with it.
i see hte grooves on it but how do you go about going around the thread and straightenin it.

[atvtrailer]

ive never used one but cant imagine how to fix a thread with it.
i see hte grooves on it but how do you go about going around the thread and straightenin it.

you just file it around the bolt or stud, the file is cut for the size threads you are using, so u just file it straight and it cleans and corrects any messed up threads, probly easier to see one used than try and explain it, even know its pretty simple

id rather use them than a tap if i can help it  because they are alot easier to use, and they are quick

[gery350]

ive never used one but cant imagine how to fix a thread with it.
i see hte grooves on it but how do you go about going around the thread and straightenin it.

you just file it around the bolt or stud, the file is cut for the size threads you are using, so u just file it straight and it cleans and corrects any messed up threads, probly easier to see one used than try and explain it, even know its pretty simple

id rather use them than a tap if i can help it  because they are alot easier to use, and they are quick

oh ok .
i think i got it.
thanks.

[dreadhed]

Thanks for the info.  I wish I could use them on female threads.  I was told to use a file over a tap if possible by some one else too.