FOX BURS CUP BUR Fig 77B CONCAVE CUTTER FRAISES ASSORTMENT SET OF 12 FOX GERMANY (E 2) NOVELTOOLS CUP BURS FOX GERMANY CONCAVE CUTTERS FRAISES Fig 77B JEWELRY BURS SET OF 12 BURS - ASSORTMENT SET OF 12 - Range 009-023 - Shaft Size 3/32" - 2.35mm Shank- Bur Set of 12 Cup Burs made by Fox Germany. Made of Tungsten Vanadium steel for strength and durability, these are made to the most rigorous quality standards and exceed ISO specifications. The precise fluting will guarantee the same smooth and even quality cutting and finishing.