Lasco's Starter Set - 12 pcs Diamond Burs 3/32" Shank (Made in the USA) U.S. Made, 100% Natural Diamond (not synthetic) Great beginner set for stone carving Diamond burs work great for cutting or carving stone, glass, wood, tile, ceramic, and more 150 Grit Diamond Burs - 3/32" Shank Save over $35 by purchasing as a set (retail value of all burs $94.45)