Busch Ball Bur Kit of 30 Pieces on 3/32 Shanks-0.50mm to 5.00mm Gemological Instruments achieving a Rockwell hardness of
Yard notes & kiln story
Description
Busch Ball Bur Kit of 30 Pieces on 3 32 Shanks 0.50mm to 5.00mm Gemological Instruments achieving a Rockwell hardness of achieving a Rockwell hardness of 63–65 — among the highest of any cutters made Flexible 2 ft hard black plastic segmented arm