Anyone had luck getting broken needle screws out? EDIT - VICTORY!!!
- emgcr
- Victor IV
- Posts: 1091
- Joined: Mon Jul 02, 2012 9:57 am
- Location: Hampshire, England.
- Contact:
Re: Anyone had luck getting broken needle screws out? EDIT - VICTORY!!!
Well done and sounds really great. Lots of happiness ahead................
-
- Victor II
- Posts: 316
- Joined: Sat Oct 13, 2018 7:59 am
Re: Anyone had luck getting broken needle screws out? EDIT - VICTORY!!!
The usual difficulty is that the screw is hardened steel, and the drill wants to slide off it into the nice soft brass. But if you can get a drill to stay in the centre (it needs to be smaller than the screw. as Steve says), a left-hand threaded drill is useful. With any luck, it will remove the screw itself. Another problem is that the inner end of the screw is often burred over from years of being tightened on hard steel needles, Turn the stub back in and file its inner end with a tiny watchmaker's file ...
-
- Victor O
- Posts: 59
- Joined: Sun Feb 18, 2024 1:44 pm
Re: Anyone had luck getting broken needle screws out? EDIT - VICTORY!!!
Thanks, but it’s already sorted as per a couple of posts back! Sounds lovely fitted to my 1939 red 102. Not quite as perfect as the one that came with the machine though so will be a backup.Oedipus wrote: ↑Fri Mar 29, 2024 10:59 am The usual difficulty is that the screw is hardened steel, and the drill wants to slide off it into the nice soft brass. But if you can get a drill to stay in the centre (it needs to be smaller than the screw. as Steve says), a left-hand threaded drill is useful. With any luck, it will remove the screw itself. Another problem is that the inner end of the screw is often burred over from years of being tightened on hard steel needles, Turn the stub back in and file its inner end with a tiny watchmaker's file ...
-
- Victor III
- Posts: 509
- Joined: Sat Jul 24, 2021 11:04 pm
- Location: British Columbia Vancouver Island Canada
Re: Anyone had luck getting broken needle screws out? EDIT - VICTORY!!!
For next time and anyone reading this, Snap-On (and probably others) make reverse drill bits that would have served this situation better.EdgarFB wrote: ↑Sat Mar 30, 2024 2:42 pmThanks, but it’s already sorted as per a couple of posts back! Sounds lovely fitted to my 1939 red 102. Not quite as perfect as the one that came with the machine though so will be a backup.Oedipus wrote: ↑Fri Mar 29, 2024 10:59 am The usual difficulty is that the screw is hardened steel, and the drill wants to slide off it into the nice soft brass. But if you can get a drill to stay in the centre (it needs to be smaller than the screw. as Steve says), a left-hand threaded drill is useful. With any luck, it will remove the screw itself. Another problem is that the inner end of the screw is often burred over from years of being tightened on hard steel needles, Turn the stub back in and file its inner end with a tiny watchmaker's file ...
That's assuming they make "Number" drills like that.