I need a quality extractor kit for 1/16 screw or other option

[rlg]

Good morning

I am refurbishing an old Cooey model 39 and ran into a small snag. I need to remove the rear sight and there is no way the screw is coming out. Stripped and rusted in. I bought an extractor kit but the smallest size is 1/8”, but I’m pretty sure that I need 1/16”.

Went on line and found nothing of quality.

Suggestions please.

Regards
Robert

 

[guntech]

Set up and center on that hole and start drilling it with a small center drill... once the small hole is centered drill it with an increasingly larger bit until you get to tap size and then retap the hole... or proceed larger and tap larger...

or simply drill and tap a new hole just a short distance down the barrel... the old hole will be hidden under the rear sight.

 

[tiriaq]

Unless your Cooey is different, the rear sight retaining screw threads into a block in a dovetail cut in the barrel. This is what I have done: Drill the head off the screw, remove the rear sight, drive out the block. Clear the remains of the screw from the block, reassemble with a new screw.

 

[MRP]

Set up and center on that hole and start drilling it with a small center drill... once the small hole is centered drill it with an increasingly larger bit until you get to tap size and then retap the hole... or proceed larger and tap larger...

2X on that. I've used that up to 3/4" stuff. Easy outs never worked for me if it's rusted or worse has lock-tight on it. Heat works to, but not all thing do well with that.

 

[trevj]

Unless your Cooey is different, the rear sight retaining screw threads into a block in a dovetail cut in the barrel. This is what I have done: Drill the head off the screw, remove the rear sight, drive out the block. Clear the remains of the screw from the block, reassemble with a new screw.

I have removed a LOT of very small, very buggered, screws over the years, and this here above, is what I would go for.

If it were a screw on something that was not removable, I made friends with a dentist years back, and cleaned them out of surplus dental drill bits. Carbide burrs in many shapes and sizes.

Use them in an air pencil grinding tool, or in a Dremel running flat out, and carefully carve out a starting point for a small drill. By starting the hole this way, you avoid having the bit skate off across your part.

For the really small screws, make your own extractor out of a high speed steel bit. Grind a tapered trapezoid shape. Make sure you taper the teeth in the right direction. If you get the edges sharp, hand pressure should allow it to bite in to the remains of the screw. Otherwise a gentle tap with a solid object, to set the teeth. Gentle! If you hit it hard enough to swage out the remains of the screw, it grips even tighter.

 

[rlg]

Good evening

Thank you very much to all of you for some very helpful advice. I will get on it this week.

Many thanks
Robert