Made of the finest Swiss-milled Vanadium steel for long life and accuracy, all burs are total length of 44.5 mm with 3/32″ (2.35 mm) shanks for quick-change handpieces. Our burs are the finest in quality at very reasonable prices and your satisfaction is guaranteed. Each set contains the same shape burs, with a wide variety of different sizes. The hang-up reusable plastic pouch keeps cutting heads apart and only takes up a small amount of storage space. Includes one of each of the following sizes: 0.70, 0.80, 0.90, 1.00, 1.20, 1.40, 1.60, 1.80, 2.10, and 2.30 mm.