50 Series Improved Trammel Heads

Features: Used to measure the distance between points that are too great to be reached with dividers | The heads are die cast and have hardened, forged steel divider points | The points screw into the heads, and the pencil socket accompanying each set of trammel heads can be used in place of either point | Die cast heads with black wrinkle finish | Heads accommodate a beam (not supplied) up to 3/8 in thick and 3/4 in wide