Fairgate heavy-duty aluminum triangle rule with 30°/60°/90° and diameter (hole) measurements. Marked in inches on the longer side. We carry the following sizes:
Small (70-110): 6" x 10"; diameter gauges for 1/32", 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 17/32", 15/32", 7/16", 13/32", 3/8", 19/32", 23/32", 27/32", 31/32"
Large (70-118): 10.5" x 18"; diameter gauges for 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16",1", 1-1/8", 1-1/4", 1-3/8"