Made in Sheffield UK - Cobalt This is not a budget Drill bit SKUsizeflute(L) Length(MM) C107-00101.0 mm1234 C107-00151.5 mm1840 C107-00202.0 mm2449 C107-00252.5 mm3057 C107-00303.0 mm3361 C107-00323.2 mm3665 C107-00333.3mm3665 C107-00353.5 mm3970 C107-00404.0 mm4375 C107-00424.2 mm4375 C107-00454.5 mm4780 C107-00484.8 mm5286 C107-00505.0 mm5286 C107-00555.5 mm5793 C107-00606.0 mm5793 C107-00656.5 mm63101 C107-00686.8 mm63101 C107-00707.0 mm63101 C107-00757.5 mm69109 C107-00808.0 mm75117 C107-00858.5 mm75117 C107-00909.0 mm81125 C107-00959.5 mm81125 C107-010010.0 mm87133 C107-010210.2 mm87133 C107-010510.5 mm94142 C107-011011.0 mm94142 C107-011511.5 mm94142 C107-012012.0 mm101151 C107-012512.5 mm101151 C107-013013.