Contains 10 each of 20 premium 6L-10 and 6L-15 style scope ring and base screws.
These difficult to find screws are favored for their non-slip design.
Packaged in a handy storage box with individual compartments for each size screw.
Kit includes tweezers and a thread size gauge, which also doubles as a shortening jig used to grind a screw to a shortly length.

KIT CONTAINS:
#6-40 Fillister Head T-10 (3/8, 1/2)
#6-40 Oval Head T-10 (1/4, 3/8)
#6-48 Fillister Head T-10 (1/4, 3/8, 9/16)
#6-48 Oval Head T-10 (1/4, 3/8)
#8-40 Fillister Head T-10 (1/4, 3/8, 1/2)
#8-40 Oval Head T-10 (1/4, 1/2)
#8-40 Fillister Head T-15 (1/4, 3/8, 1/2)
#8-40 Oval Head T-15 (1/4, 3/8, 1/2)