Starrett 50A Improved Trammel Point Set

Starrett 50A Improved Trammel Point Set

Trammel points let you make your own beam compass for scribing or marking circles and arcs of any diameter from 3" to as big as fits in the shop. This Starrett trammel set features black cast iron heads that fits a beam size to 3/8" thick and 3/4" wide and hardened steel scribing pins sharpened exceedingly well. One pin is micro-adjustable using a thumb screw. Either pin may replaced with a pencil socket (included) that holds pencils up to 1/4" in diameter.