These very popular cup burs feature a unique blade design that allows for faster cutting, assuring longer life for the bur and more production for the jeweler. Head is slimmer than other cup burs — ideal when prongs are close together. 3/32" shank. Made in Germany.
Sold in multiples of 6.
Available in 8 sizes: 1.00mm, 1.20mm, 1.40mm, 1.50mm, 1.60mm, 1.80mm, 2.10mm, and 2.30mm.
Busch Bur sizes correspond to the OD of the bur head. Shank diameter is 2.38mm (3/32"). Overall length is 44.5mm (1-3/4").