John Stevenson | 03/03/2015 13:51:56 |
![]() 5068 forum posts 3 photos | Sorting some tips out yesterday from job lots bought over the years and got these.
Anyone recognise them ?
Doesn't show up very well in the pic but the radius and nose are ground as opposed to just being pressed in a mould. |
David Jupp | 03/03/2015 14:14:40 |
978 forum posts 26 photos | The code on the box is for a triangular insert - so I guess these have been modified to a 'special' (or are in the wrong box). |
JasonB | 03/03/2015 14:25:31 |
![]() 25215 forum posts 3105 photos 1 articles | Ninja throwing tips? |
Ketan Swali | 03/03/2015 15:50:18 |
1481 forum posts 149 photos | Posted by JasonB on 03/03/2015 14:25:31:
Ninja throwing tips? |
Ed Duffner | 03/03/2015 15:58:18 |
863 forum posts 104 photos | I was thinking Ninja stars when I first opened the thread Looks like there's a slight taper to the bottom edge on that RH one, Could they be for threading with a special profile .e.g worm gear? Ed. |
JasonB | 03/03/2015 16:09:35 |
![]() 25215 forum posts 3105 photos 1 articles | They might do a butress thread. Or would be handy for making your own broaches Edited By JasonB on 03/03/2015 16:47:00 |
Brian Rice 1 | 03/03/2015 17:20:50 |
82 forum posts 11 photos | One day one might get a sensible answer on this forum when all the school boy a gone to bed if someone ask a question they expect a descent replay not a load of schoolboy drivel. Rant over |
Rik Shaw | 03/03/2015 18:15:01 |
![]() 1494 forum posts 403 photos | When all the school boy a gone to bed they expect a descent replay - please don't let them down! Rik (drivelling) |
JasonB | 03/03/2015 18:27:41 |
![]() 25215 forum posts 3105 photos 1 articles | Well I did give a couple of proper possibilities Butress form seems to fit quite well with the shape And if plunged in with the cross slide would cut quite nice teeth for a broach blank, easier to see the similarity in shape when looking at a keyway broach
Edited By JasonB on 03/03/2015 19:38:55 |
Richard Robinson 4 | 03/03/2015 20:06:18 |
1 forum posts | The code is for a triangular turning tool, with chip breaker, in a high grade. (http://www.sandvik.coromant.com/en-gb/products/pages/productdetails.aspx?c=tpmr%20221-53%202025) They look an awful lot like the shim to go under an internal threading tip to me, and the grey colour also suggest the "lower" grade these shims are normally made from. Example (http://www.shop-apt.co.uk/shims-seats/yi4-shim-for-22nr-22el-threading-inserts.html). Having three points though does make me wonder if they might even be threading tips? Hope this helps! Richard |
fizzy | 03/03/2015 20:11:18 |
![]() 1860 forum posts 121 photos | Im erring on the side of Ninja Stars for very little people, |
Brian Rice 1 | 03/03/2015 20:15:30 |
82 forum posts 11 photos | Posted by Rik Shaw on 03/03/2015 18:15:01:
When all the school boy a gone to bed they expect a descent replay - please don't let them down! Rik (drivelling) You picked up on the pigeon English, it was intended. |
Neil Wyatt | 03/03/2015 20:23:32 |
![]() 19226 forum posts 749 photos 86 articles | Pidgin - but I doubt the schoolboy humour will be lost on JS. You could use them as pigeon caltraps John, keep the winged rats off the roof Do look like buttress thread form to me. Neil |
Brian Rice 1 | 05/03/2015 17:34:37 |
82 forum posts 11 photos | Here's the part number for these Sandvik tips R156.3-22 370, 135 P35 22374 |
Brian Rice 1 | 05/03/2015 17:36:38 |
82 forum posts 11 photos | Posted by Neil Wyatt on 03/03/2015 20:23:32:
Pidgin - but I doubt the schoolboy humour will be lost on JS. You could use them as pigeon caltraps John, keep the winged rats off the roof Do look like buttress thread form to me. Neil Pigun don't not no what you are meaning |
JasonB | 05/03/2015 17:38:57 |
![]() 25215 forum posts 3105 photos 1 articles | Brian how did you come up with that code? There is a boxed set on ebay with that code but not teh same shape as Johns? |
John Stevenson | 05/03/2015 17:40:01 |
![]() 5068 forum posts 3 photos | Close Brian but not quite, those have straight angles sides [ if that makes sense ] probably for ACME. Mine has curve at the front, curve on the nose and straight on the back.
Probably that special I'll never find out what they are, mind you be happy at £22 a box as i must have 40 boxes or so. |
David Jupp | 05/03/2015 18:14:23 |
978 forum posts 26 photos |
Looks like a standard tip has been ground for a special job. John did mention ground rather than simply pressed. |
Brian Rice 1 | 05/03/2015 19:20:23 |
82 forum posts 11 photos | Posted by JasonB on 05/03/2015 17:38:57:
Brian how did you come up with that code? There is a boxed set on ebay with that code but not teh same shape as Johns? Yes it was flebay |
Danny M2Z | 05/03/2015 20:35:01 |
![]() 963 forum posts 2 photos | A stylised logo for stamping castings produced here:? |
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