John Morrison Posted March 12, 2020 Report Share Posted March 12, 2020 Hi all, looking for the name of the following, so I can buy one. Small 'Bit' that you pop in a drill, has a cone shaped end with a blade, used to trim the end of a cut bolt, threaded bar etc. Cheers, John. Quote Link to post Share on other sites
RobH Posted March 12, 2020 Report Share Posted March 12, 2020 (edited) External chamfer cutter? One of these: https://www.amazon.co.uk/Laser-7510-External-Deburr-Chamfer/dp/B07NDSQGVQ/ref=cm_cr_arp_d_product_top?ie=UTF8 Edited March 12, 2020 by RobH Quote Link to post Share on other sites
HSM Posted March 12, 2020 Report Share Posted March 12, 2020 Hi John Laser tool no. 7510 external deburr/chamfer tool, guide price £16.87+vat. Regards Harvey S.Maitland Quote Link to post Share on other sites
John Morrison Posted March 12, 2020 Author Report Share Posted March 12, 2020 Magic Guys, Cheers, John. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted March 12, 2020 Report Share Posted March 12, 2020 Please report back on how well it works please. I am still old school using a flat file and a thread file if the thread is really mangled. Cheers Peter W Quote Link to post Share on other sites
Lebro Posted March 12, 2020 Report Share Posted March 12, 2020 I use a lathe (or a grindstone) Bob. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted March 12, 2020 Report Share Posted March 12, 2020 18 minutes ago, Lebro said: I use a lathe (or a grindstone) Bob. ...and while we are on that Bob how do you sharpen tools and drills? Do you use an universal tool and cutter grinder? Peter W Quote Link to post Share on other sites
Lebro Posted March 13, 2020 Report Share Posted March 13, 2020 Bench grinder with two sorts of wheel (green one for carbide tipped) For small drills I use a simple jig which attaches to a hand drill. bOB. Quote Link to post Share on other sites
John Morrison Posted March 13, 2020 Author Report Share Posted March 13, 2020 Just to explain, I have some cut down wheel studs on the car, which could be neater, thought this would dress then up in situ. John. Quote Link to post Share on other sites
john.r.davies Posted March 13, 2020 Report Share Posted March 13, 2020 Just the thing for insitu dressing, but I'd still run a tap down them after. Jhn Quote Link to post Share on other sites
stuart Posted March 13, 2020 Report Share Posted March 13, 2020 15 hours ago, BlueTR3A-5EKT said: Please report back on how well it works please. I am still old school using a flat file and a thread file if the thread is really mangled. Cheers Peter W Same here! Stuart. Quote Link to post Share on other sites
Waldi Posted March 13, 2020 Report Share Posted March 13, 2020 I simply used a (female) tap, it does not remove material in these cases, just rectifies the profile. Waldi Quote Link to post Share on other sites
john.r.davies Posted March 13, 2020 Report Share Posted March 13, 2020 Sorry, Waldi, I should have said 'Die' - female tap! John Quote Link to post Share on other sites
Waldi Posted March 13, 2020 Report Share Posted March 13, 2020 Aha, learned something new today. male = tap female = die Thank’s John. Quote Link to post Share on other sites
Dave McDonald Posted March 16, 2020 Report Share Posted March 16, 2020 On 3/12/2020 at 6:58 PM, BlueTR3A-5EKT said: Please report back on how well it works please. I am still old school using a flat file and a thread file if the thread is really mangled. Cheers Peter W Me too. A Die Nut is easy to run down a burred thread to clean it up without removing extra material. Dave McD Quote Link to post Share on other sites
John Morrison Posted March 17, 2020 Author Report Share Posted March 17, 2020 Not so easy on four studs on a car, I've ordered the tool and will report back on the effect, I will run a nut up the stud prior to tool use, so that will help with thread cleaning on removal. John. Quote Link to post Share on other sites
john.r.davies Posted March 17, 2020 Report Share Posted March 17, 2020 I've often wondered why 'proper' dies, to be used in a die holder, and Die Nuts, were available. So a die nut is for cleaning up a thread, a 'proper' die for cutting it in the first place? Thanks, Dave! I've made my own die nuts before, to clean up a stud thread, by cutting slots inside across the threads. Works well, but probably single use only and throw away. John Quote Link to post Share on other sites
Dave McDonald Posted March 17, 2020 Report Share Posted March 17, 2020 10 hours ago, john.r.davies said: I've often wondered why 'proper' dies, to be used in a die holder, and Die Nuts, were available. So a die nut is for cleaning up a thread, a 'proper' die for cutting it in the first place? Thanks, Dave! I've made my own die nuts before, to clean up a stud thread, by cutting slots inside across the threads. Works well, but probably single use only and throw away. John Yes John, spot on. I've also used the hacksaw cut in a conventional nut solution when the die nuts aren't to hand. Dave Quote Link to post Share on other sites
RogerH Posted March 17, 2020 Report Share Posted March 17, 2020 The problem with a die nut or a but with slots cut in is getting it started. If the first few threads are damaged you may well end up damaging more threads The picture below came up on the TSSC forum last year. It is a clamp of hardened split nuts You clamp it in the middle where the threads may well be OK and unwind to clean the start threads. Genius - but long gone. Roger Quote Link to post Share on other sites
tim hunt Posted March 18, 2020 Report Share Posted March 18, 2020 What a brilliant bit of kit Roger. I'd snap it up like a shot if I ever saw one. Just goes to show the simplest ideas are the best! Tim Quote Link to post Share on other sites
john.r.davies Posted March 18, 2020 Report Share Posted March 18, 2020 (edited) Your wish is my command, O Master Tim: https://www.ebay.co.uk/itm/Edwards-Bolt-Saver-/283792696648 Not mine, but my magic! It's gorilla magic! Edited March 18, 2020 by john.r.davies Quote Link to post Share on other sites
Lebro Posted March 18, 2020 Report Share Posted March 18, 2020 'tis sold Quote Link to post Share on other sites
D Murton Posted March 18, 2020 Report Share Posted March 18, 2020 Another one https://www.ebay.co.uk/itm/VINTAGE-EDWARDS-BOLT-SAVER-IN-ITS-ORIGINAL-BOX/184213574216?_trkparms=aid%3D888008%26algo%3DDISC.CARDS%26ao%3D1%26asc%3D225076%26meid%3D36e0cea9ac3c4c688f7d8857c73567b9%26pid%3D100035%26rk%3D1%26rkt%3D1%26sd%3D283792696648%26itm%3D184213574216%26pmt%3D0%26noa%3D1%26pg%3D2047675%26algv%3DDiscV1&_trksid=p2047675.c100035.m1982 Dave Quote Link to post Share on other sites
RAHTR4 Posted March 18, 2020 Report Share Posted March 18, 2020 Hi John, I think the item below qualifies as the tool for the job, it is called a ROST – Restorer Of Spoilt Threads A fully engineered solution for dealing with damaged threads, thought to be from the 1930’s, however it is limited to three thread types – BSF, Whit and Metric. Regards, Richard Quote Link to post Share on other sites
Dave McDonald Posted March 18, 2020 Report Share Posted March 18, 2020 3 minutes ago, RAHTR4 said: Hi John, I think the item below qualifies as the tool for the job, it is called a ROST – Restorer Of Spoilt Threads A fully engineered solution for dealing with damaged threads, thought to be from the 1930’s, however it is limited to three thread types – BSF, Whit and Metric. Regards, Richard That's a clever bit of kit. Dave McD Quote Link to post Share on other sites
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