Lance Triangle  TR-3060-8 30 / 60 / 90 

These excellent tools for commercial artists, draftsmen and for crafts of all kinds are available in angles of 30°/60°/90° or 45°/45°/90°, and in lengths from 6" to 14". They are calibrated in sixteenths of an inch on one edge, one side. Each triangle has 20 or 26 circular template holes, depending on its size. The diameter of the circular template holes ranges from 1/32" to 1 3/8".