12 Euro Tool Cup Burs This is a set of 12 Euro Tool cup 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 0.9, 1, 1.2, 1.37, 1.5, 1.6, 1.75, 2, 2.3, 2.5, 2.7 and 3 mm