Trammel Head Set
Create your own circle scribe with this Trammel Head two piece set. The size of your arc is limited only by the length of your beam.
Die cast bodies have ground 3" legs with replaceable needle points. Needle points may be unscrewed from the bodies and replaced with the furnished pencil holder.
An outside head adjustment feature allows up to 5/8" of precision movement even after the heads have been locked to the beam. For use with a 3/8"x 3/4" beam or smaller.