The Wheeler bit that is the best fit is the 608-712. I believe it comes only in the largest Wheeler set and in one of their accessory kits. The width of the slot in a Colt type screw is approx. .0740" and the Magpul is about .0800"
424-466 .0600" thick
608-712 .0695"-.0700" thick
I've been using the Brownells bit for these screws for about 30 years. Never found anything better.
Last edited by M90A1; 05-02-22 at 21:21. Reason: remove snarky comment
Do we really live in a world where an adult doesn't own a straight screwdriver?
I know, properly fitting screwdriver, etc. Its a grip screw, who cares if it gets a little mangled?
Andy
Last edited by AndyLate; 07-20-22 at 07:10.
I will not allow an improperly fitting screwdriver anywhere near my grip screws, or any other screw for that matter. A perfect fit is even more important since you can't really see very well what you're doing down inside the grip. And I very much care if the grip screw drive slot gets a little mangled, I've replaced certain parts for things that were even more hidden and insignificant.
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