Carbide Burr (SD-3L6D) Ball Shape - Double Cut - 1/4 x 3/8 x 3/8 x 6 3/8 $15.8 Country/Region of Manufacture United States Brand Buckeye Carbide condition New Ball Shape - Double Cut - 1/4 x 3/8 x 3/8 x 6 3/8 A product of Buckeye Carbide. Made in USA!