Gunsmithing Screwdriver Compatibility

Please share your experience using Forster Gunsmithing Screwdrivers with screws on various firearm models and accessories. We will compile a database of which Screwdrivers work best and share your input with fellow craftsmen.


Screwdriver Blade Dimensions

No. Use Dimension A Dimension B
1 Rem., Win., etc., plug screws, S&W side plate screws 1/8″ 0.023″
2 Lyman, Leupold, Redfield scope screws, backstrap six gun 3/16″ 0.032″
3 B&L, Weaver, Buehler scope mount screws 3/16″ 0.037″
4 Williams 10-32 screws 1/4″ 0.041″
5 Rem., Win., Sako, Savage, etc., guard screws 5/16″ 0.040″
6 Special for butt stock screws 3/8″ 0.065″
10 Win., O/U butt, Browning trigger guard 3/8″ 0.021″
13 Browning automatic receiver screws 1/4″ 0.024″
14 Guard screws, general purpose 5/16″ 0.034″
15 Guard screws, general purpose 5/16″ 0.037″
16 Redfield streamlined scope mount rings 11/64″ 0.031″
17 Small screws, general purpose 1/8″ 0.035″