Tap and die set or thread chaser
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Senior User
Joined: Apr 2003
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Tap and die set or thread chaser
I messed up a little bit of the first few threads on a bolt. It just showed me how little u have to mess up to not make one thread right. I cant get the nut started because it is at the very beginning. I was going to buy a tap and die set to fix it but would a thread chaser be better to repair the damaged threads. I know that thread chasers clean threads of dirt and rust and tap and die sets will cut new threads. I have used tap and die sets before but never really thought about this until i have the need to buy one. I am leaning towards a tap and die set though.
Senior User
Joined: Jul 2004
Posts: 128
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From: Detroit Metro Area
Josh79, Hi, I've been there before too. I think it's always a great thing to have taps & dies for threads. If you do lots of stuff they are worth it or sometimes just needing it once makes it worth while.
For your problem now I guess it all depends on the $. You can get a thread restoring file that is 4 sided with 8 different thread pitches on it. These are usually quite inexpensive & will work on many kinds or "mistakes". I don't know if your needs are metric or American but I imagine they're out there for metric. The chasers are good too if it will fit where you need to use it. If you're in a jam I probably have the size you need. Send me a pm if you like. Rick
For your problem now I guess it all depends on the $. You can get a thread restoring file that is 4 sided with 8 different thread pitches on it. These are usually quite inexpensive & will work on many kinds or "mistakes". I don't know if your needs are metric or American but I imagine they're out there for metric. The chasers are good too if it will fit where you need to use it. If you're in a jam I probably have the size you need. Send me a pm if you like. Rick
Originally Posted by Josh79
I messed up a little bit of the first few threads on a bolt. It just showed me how little u have to mess up to not make one thread right. I cant get the nut started because it is at the very beginning. I was going to buy a tap and die set to fix it but would a thread chaser be better to repair the damaged threads. I know that thread chasers clean threads of dirt and rust and tap and die sets will cut new threads. I have used tap and die sets before but never really thought about this until i have the need to buy one. I am leaning towards a tap and die set though.
Senior User
Joined: Mar 2003
Posts: 288
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From: Northeast Wisconsin
I've always just used my tap & die set to chase any thread that needed it. You just have to be careful not to start cutting a new thread if you're trying to chase one that's really bunged up. Depending on the size of the bolt and the pitch of the thread, many times you can clean up the damaged spot by carefully using a small triangle file - especially if it's damaged at the very start of the thread. Then "chase" it with a die. Of course, still use a lubricating oil (I prefer "Tap Magic", but otherwise 10W-30 will work, too) anytime you use either a tap or a die.
Posting Guru
Joined: Apr 2004
Posts: 1,671
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From: Eastern Shore, Md.
I use both, I have a complete tap & die set and a rethreader set that also has thread files. I usually try the rethreader 1st. then the tap/die. I hardly ever use the files unless it's a large bolt.
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