Made from tough, hardened vanadium steel, these Maillefer 90° hart burs are used for cutting stone seats and for notching prongs. This set has twenty-four 90° burs, one of each size. The set include• 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm , 1.5...