12Pc Swiss Tungsten Vanadium Setting Burs Assortment This is a new set of 12 Euro Tool setting burs Made of the finest Swiss-milled Vanadium steel for long life and accuracy The hang-up reusable plastic pouch keeps cutting heads apart and takes up very little storage space All burs have 3/32" (2.5 mm) shanks for quick-change handpieces The burs measure approximately 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