Tool SteelHigh-quality burs in various forms by Busch. Subgroups Round Burs 1 Wheel Burs 3 Pointed Burs 5 Cylinder Burs 21 Cone Burs 23 Cylinder Burs 36 Cone Burs 38 Round Burs 41 Cylinder Burs 49 Wheel Burs rounded 74Y Krause Flame 194 Wax Burs 260 Concave Burs 411T Cylindrical Burs 412 Stone Setting Burs 413 Bearing Burs 90° 414 Bearing Burs 70° 446 PavéCut 447