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Ask The Trades › DIY Forum › Carpentry Questions › Wooden thread cutting taps

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Wooden thread cutting taps (Read 3888 times)

mr_spanton

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Wooden thread cutting taps
Sep 30^th, 2006, 11:12am

Does anyone have experience of cutting wooden threads with screw boxes??

I got a marples 1" and a sarjent 1 1/2" one off ebay a while back. I havent used the sarjent one yet. The marples cuts "OK" but I think the tap could do with a sharpen to get a cleaner internal thread.
Qusetion is how do you sharpen or hone a tap? Has anyone any useful tips?
Cheers Jonathan

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TIMBA-WOLF

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Re: Wooden thread cutting taps
Reply #1 - Sep 30^th, 2006, 4:28pm

i normally use thread chasers, but i think you should be able to hone the taps by using a piece of leather with a honing compond applied to it! (after a light oil is soaked into it first!) then with the tap held in a drill chuck , ease the leather up the face edge of the tap a few times! so basically you are "feeding" the strip up the thread! and then back down the rear face...

i hope that makes sense to you!

AS HONEST AND LOYAL AS THE TIMBER-WOLF. --VAR@*SH, DON'T YOU SWEAR AT ME!! PAL!!&&I DON'T SUFFER FROM INSANITY- I DAMNED WELL ENJOY IT!!!!!

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mr_spanton

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Re: Wooden thread cutting taps
Reply #2 - Sep 30^th, 2006, 6:37pm

Thats what I thought it would involve Wolf, like what you suggested, or a slipstone. I was a bit concerned I could ruin the diameter. The bigger sarjent seems to have hardly been used, I expect it will cut well, but the marples has very slight pitting on some of the curved zig zag teeth, it did a cut but I had some "crumbling" of the thread edges (I used a good piece of stable beech which I believe is the best specis to use for thread cutting)
PS what is a thread chaser?
Cheers Jonathan

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TIMBA-WOLF Board Moderator Offline Timba-Wolf..... Var@*sh, should be banned!! Posts: 7158 Total Thanks: 15 For This Post: 0 KENT,(under a tree!!!!) United Kingdom Gender: Trade: Joiner	Re: Wooden thread cutting taps Reply #3 - Sep 30^th, 2006, 10:10pm it would have to be a very thin slip stone and very fine grit to! as for thread chasers!! http://www.axminster.co.uk/recno/24/product-Crown-Thread-Chaser-19733.htm fine threads!!
Back to top	AS HONEST AND LOYAL AS THE TIMBER-WOLF. --VAR@*SH, DON'T YOU SWEAR AT ME!! PAL!!&&I DON'T SUFFER FROM INSANITY- I DAMNED WELL ENJOY IT!!!!! IP Logged

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