ive got some really nice snap-on screwdrivers.... and cant find 1 thin enough to remove the screws that hold the base blanks in... any idea as to what size is needed????.. mine are 3/16 x .020...and its too thick...the set ive got is the electronic srewdrivers set....help????... or its going to tip burns saturday....

jim,

Grace USA has a screw driver set specifically for Browning shotgun screws which are very thin. The Grace Product number is #HG-5. The telephone number I have for Grace is 231-264-8133 in Williamsburg, Michigan. Brownells carries Grace as well.

I have never tried these on a Chapius.

Jim - i've removed several sets of these and reccomend a cheap screwdriver and a file.

Just shape the scewdriver (with the file) to fit the slot.

At least use a Hollow-Ground screw driver to keep from marring the screw slot.

quote:

At least use a Hollow-Ground screw driver to keep from marring the screw slot.

I recommend the "cheap" screwdriver but not filing it to fit. If you grind it on a wheel, it will be "hollow ground" and fit the slot better. Just be sure to keep it cool by dipping it in water after a short period on the wheel. Don't let it turn blue from the friction. Grind a little, cool a little until it fits the slot.

Concur; my 'smith had to grind a screwdriver to fit them.

Also, the Allen screws on the rings are METRIC (2.5mm I believe).