Big Horn 26105 Layout Compass

The Big Horn 26105 is a Layout Compass. The compass lays out circles up to 30 inch with precision. 17-3/4 inch x 2-3/8 inch Beam is made from 1/4 inch acrylic imprinted with 3 scales for setting exact diameter or radius. Compass pivots on steel needle point, adjusts in and out with locking knob. Tip holds standard #2 pencil.