*Material: Carbide (K10). *D<3.6: Male type for both side, others: center type. *D<1.5: shank dia. is 1.5, others: shank dia. is the same with Dia.
*Material: Carbide (K10). *D<3.6: Male type for both side, others: center type. *D<1.5: shank dia. is 1.5, others: shank dia. is the same with Dia.