Adjustable Beam Trammel Points, offered in (2) sizes DT-R18 (7" to 18" radius ) DT-R42 (12" to 42" radius). All steel construction, spring steel handle.
Handy handle serves two purposes: (1) by compressing the handle allows the trammel arms to be precisely set, (2) handle allows more uniform flow in use for accurate line placement. Tips can be re-sharpened or replacement tips are offered. Made in USA