DeTRacted Posted January 4, 2023 Share Posted January 4, 2023 3 minutes ago, Nick Jones said: Um……. Please sir…. What is it? Thread cleaner. Link to comment Share on other sites More sharing options...
Escadrille Ecosse Posted January 5, 2023 Share Posted January 5, 2023 It's a thread file. The teeth are cut to the appropriate pitch and profile to dress a rough thread when you don't have or want to use a die. Link to comment Share on other sites More sharing options...
GT6MK3 Posted January 5, 2023 Share Posted January 5, 2023 11 hours ago, Escadrille Ecosse said: Another Sykes Pickavant tool bought from Halfords a few thousand years ago. Used very rarely, can't actually remember the last time but it must have been quite a while as the first job after finding the thing at the back of the tool cabinet was cleaning out all the fluff and crud. However perfect for when you do need it as in this case... Deffo have one of these in the cutting/tapping/chasing drawer. Link to comment Share on other sites More sharing options...
Nick Jones Posted January 5, 2023 Share Posted January 5, 2023 10 hours ago, DeTRacted said: Thread cleaner. Ah…. Ok. Thanks. I’ve managed without one this long….. Link to comment Share on other sites More sharing options...
thebrookster Posted January 5, 2023 Share Posted January 5, 2023 10 hours ago, DeTRacted said: Thread cleaner. Worth their weight in gold, easily. Here is a selection we keep onboard (the "decent" ones are hidden away): Link to comment Share on other sites More sharing options...
JohnD Posted January 5, 2023 Author Share Posted January 5, 2023 A die is a good way to clean up a thread. But only one size and pitch. Do those deal with four pitches each (four sided?) and can they deal with several sizes? JOhn Link to comment Share on other sites More sharing options...
RogerH Posted January 5, 2023 Share Posted January 5, 2023 A die is only happy if the top couple of threads are clean in order to get it started. For Ali and smaller mild steel external threads you can split (Hacksaw) a nut, clamp it onto a good portion of thread and then wind it up. This often works. Roger Link to comment Share on other sites More sharing options...
Escadrille Ecosse Posted January 5, 2023 Share Posted January 5, 2023 1 hour ago, JohnD said: A die is a good way to clean up a thread. But only one size and pitch. Do those deal with four pitches each (four sided?) and can they deal with several sizes? JOhn Eight pitches, four each end. As Phil says they are great for chasing threads without cutting with a die as you can do a light clean without affecting the 'fit' of the thread. And as Roger points out, absolutely perfect for dressing a damaged first thread. Link to comment Share on other sites More sharing options...
Nick Jones Posted January 5, 2023 Share Posted January 5, 2023 I have needle files….. Many years ago used to have to clean up M54 (or maybe 56, I forget) often. Used a bastard file for that Link to comment Share on other sites More sharing options...
JohnD Posted January 5, 2023 Author Share Posted January 5, 2023 (edited) Thank you, all! And understood, Roger. I have one of these, a 'bolt chamfer tool'. Very useful if you need to shorten a bolt, and for cleaning up the end if the threads are manky. Usually lets a die get going. Edited January 5, 2023 by JohnD Link to comment Share on other sites More sharing options...
PeteStupps Posted January 5, 2023 Share Posted January 5, 2023 42 minutes ago, JohnD said: have one of these, a 'bolt chamfer tool' Aha! I wondered if there was a tool for this very purpose. Do you use it on a lathe or would it work in a drill? Link to comment Share on other sites More sharing options...
Hamish Posted January 5, 2023 Share Posted January 5, 2023 1 hour ago, PeteStupps said: Aha! I wondered if there was a tool for this very purpose. Do you use it on a lathe or would it work in a drill? I have one of those. Very useful and can be used on a drill. 1 Link to comment Share on other sites More sharing options...
JohnD Posted January 5, 2023 Author Share Posted January 5, 2023 Ideally, both tool and bolt need holding firmly. Even mounted on my pillar drill, and with the bolt in a machine vice, it tends to rattle around a bit, unless the vice is gripped. 1 Link to comment Share on other sites More sharing options...
PeteStupps Posted January 5, 2023 Share Posted January 5, 2023 I've ordered myself a Sealey one. I feel like a fool for not knowing they existed! Link to comment Share on other sites More sharing options...
Nick Jones Posted January 6, 2023 Share Posted January 6, 2023 11 hours ago, PeteStupps said: not knowing they existed! You were not alone…, Link to comment Share on other sites More sharing options...
Escadrille Ecosse Posted January 6, 2023 Share Posted January 6, 2023 If you have a bench grinder, another extremely handy tool, it also does an excellent job of chamfering the end of a cut bolt. Link to comment Share on other sites More sharing options...
2.5piman Posted January 6, 2023 Share Posted January 6, 2023 Hello Nick, it is a thread file for dressing damaged threads. I prefer die nuts but of course that is more expensive depending on the range required. Alec Link to comment Share on other sites More sharing options...
JohnD Posted January 6, 2023 Author Share Posted January 6, 2023 9 minutes ago, Escadrille Ecosse said: If you have a bench grinder, another extremely handy tool, it also does an excellent job of chamfering the end of a cut bolt. Not to start a duel, but a grinder tends to leave swarf in the thread, needing a run with a die, or a previously threaded nut, to make the bolt free running. The tool cuts away the chamfer, leaving the threads clear. Just saying! John Link to comment Share on other sites More sharing options...
2.5piman Posted January 6, 2023 Share Posted January 6, 2023 Hello John, my grinder hasn abrasive wheel one end and a wire brush on the other end, shape the cut end with the abrasive wheel and clean the swarf with the wire brush. How do you delete a post in this forum? My earlier post prior to yours was a mistake on my part as I thought Nick's query was the last in the tread. I subsequently saw that it had already been comprehensively answered. Alec Link to comment Share on other sites More sharing options...
Escadrille Ecosse Posted January 6, 2023 Share Posted January 6, 2023 22 minutes ago, JohnD said: Not to start a duel, but a grinder tends to leave swarf in the thread, needing a run with a die, or a previously threaded nut, to make the bolt free running. The tool cuts away the chamfer, leaving the threads clear. Just saying! John John, you are quite correct. It is however often easier/quicker to handle than the chamfer tool. Old trick though, when cutting a bolt or a bit of threaded rod put a nut (or two if there is space) below the cut and keep it there until the cut end has been tidied up. Link to comment Share on other sites More sharing options...
JohnD Posted January 6, 2023 Author Share Posted January 6, 2023 41 minutes ago, 2.5piman said: Hello John, my grinder hasn abrasive wheel one end and a wire brush on the other end, shape the cut end with the abrasive wheel and clean the swarf with the wire brush. How do you delete a post in this forum? My earlier post prior to yours was a mistake on my part as I thought Nick's query was the last in the tread. I subsequently saw that it had already been comprehensively answered. Alec Three dots, top right, let you edit. Delete? Don't know. Link to comment Share on other sites More sharing options...
PeteStupps Posted January 7, 2023 Share Posted January 7, 2023 12 hours ago, Escadrille Ecosse said: Old trick though, when cutting a bolt or a bit of threaded rod put a nut (or two if there is space) below the cut and keep it there until the cut end has been tidied up That's what I usually do, using two nuts to clamp the bolt / rod in the vice. But it doesn't give you a nice leading edge for poking into a captive nut or whatever. When this tool arrives I'm going to chamfer everything in the garage! Link to comment Share on other sites More sharing options...
2.5piman Posted January 7, 2023 Share Posted January 7, 2023 Hello John, I tried the three dots and that only allows me to share, not even edit, much less delete? Alec Link to comment Share on other sites More sharing options...
Hamish Posted January 7, 2023 Share Posted January 7, 2023 8 hours ago, PeteStupps said: That's what I usually do, using two nuts to clamp the bolt / rod in the vice. But it doesn't give you a nice leading edge for poking into a captive nut or whatever. When this tool arrives I'm going to chamfer everything in the garage! Ha ha thats what I started to do. there is a knack to using it in a drill. It’s a felt pressure thing as it is self cantering on just 3 cutting edges. But a useful tool nevertheless. Link to comment Share on other sites More sharing options...
Escadrille Ecosse Posted January 7, 2023 Share Posted January 7, 2023 9 hours ago, PeteStupps said: That's what I usually do, using two nuts to clamp the bolt / rod in the vice. But it doesn't give you a nice leading edge for poking into a captive nut or whatever. When this tool arrives I'm going to chamfer everything in the garage! No but what I should have said is that it does help clean out the threads after you have done the chamfering. 1 Link to comment Share on other sites More sharing options...
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