3/4 x 4″ Round Cobalt Tool Bit • Ground HSS or Cobalt Available • High speed steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials List Number TO07940 Substrate Cobalt Package Quantity 1 Length 4" Style Round Diameter 3/4 SKU: TO07940 Category: Tool Bits Related products 3/4 x 5″ Square HSS Tool Bit Item #: TO01850 5/16 x 6″ Square HSS Tool Bit Item #: TO01329 1/2 x 8″ Square HSS Tool Bit Item #: TO01644