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 in various sizes. The wooden stand provides convenience and organized storage on your workbench. Includes one of each of the following sizes: 1.00, 1.20, 1.50, 1.70, 2.00, 2.20, 2.50, 3.00, 3.50, 4.00, 4.50, and 5.00 mm.