The BRASS CASE GAGES by L.E. WILSON, INC. are made of brass for corrosion resistance and have an excellent surface finish, enhancing their gaging quality.
These gages are designed to check overall length, datum to head length, and headspace to prevent over sizing and ensure proper case trimming.
Invented by founder Sam (L.E.) Wilson in 1935, the Cartridge Case Gage is a safety tool to help reloaders manage shoulder sizing on cases and solve case-separation issues.