Another buggered screw

MD

MD

CGN Ultra frequent flyer
Rating - 100%
13   0   0
I'm trying to remove the rear band screw off a 1956 Winchester Model 94 I've been recently given, but a previous owner buggered the head so no screwdriver head will work in the slot.

I'd like to get this off to reblue the barrel and mag tube, but am stuck.
 
I've used this stuff with good success,
http://www.screwgrab.com/
Lee Valley sells it but I think it is similar to valve grinding compound so maybe you could source some at an auto store....it works by increasing the friction/bite between the worn slot and the screwdriver.
Other things to try would be reshaping the slot with a dremel and a small diamond burr.
The screw is pretty small but I think with the right dremel bit you could clean it up.
It's possible that it's seized in there so maybe some penetrating oil over night before you try again.
Sometimes vibrations will help break the thread free so maybe a light tap or two with a punch and hammer on the bolt.
Good Luck!
Getting worn screws out is a bit of an art...stay positive!
 
Try an impact screw driver and soak the screw/band with oil. If that fails you can drill out the screw and try and use an extractor. Failing that weld a nut onto the head of the screw and it will come out.
 
If you can use a dremel or die grinder with a pencil blade to even up the slot, so you can find a screwdriver to fit it.If you can't find one that fits, grind an old driver to fit the slot the best you can.If a screwdriver fits the screw it will work with less effort, and less chance of messing up the head.
Scott
 
on small screws and those that have been set into a frame or similar so that you cant get at them very well to cut a new slot- I use an appropriate sized reverse cut drill bit and then drill it (using the reverse setting of your drill) in a drill press (if you can)

The reverse turn combined with the biting action of the bit into the screw will almost aways cause it to back out. If it doesn't back out -- continue to drill the hole and use an appropriate sized Easy Out or similar tool - it should come out then.

oh yes -- the other way is if you can see the back of the screw then yu can use the drill press and a regular drill bit turning the normal way - it usually will then back the screw out from the front
 
Last edited:
Mine are old - but I think I got them with a kit that had the "easy out" type screw removers. I would suspect the large tool on-line guys have them.

I will take a look around and see what I can find - but they do come in handy because with a conventional bit, as you drill you are just tightening the screw. The reverse gives it a loosening vibration even tho you are pushing down on it --

use penetrating oil of course and maybe some heat if you can - it does work.
 
Snap-On has a nice set of screw extractors that comes with all the reverse drill bits required for th easy outs. Retails at about $400.00 U.S. but only goes down to 3/16". Good for cars, not so good for guns.
 
0543838_1


Mastercraft Maximum Grab-IT 4-piece Set
PRODUCT #54-3838-2

these suprisingly work really well.
one end drills a cone, the other bites in and out it comes..
 
You must log in or register to reply here.
Back
Top Bottom