Letter size drills can be quickly and conveniently checked with this gage. Twenty-six holes are provided, giving corresponding drill sizes from “A” through “Z” with decimal equivalents from .234″ diameter through .413″ diameter.
The gage is approximately 5/64″ thick by 2 5/16″ wide and 6 1/4″ long, is hardened and has a satin finish. Thoroughly tested after hardening.
