High Speed Steel TiN Coated Fractional Jobber Drill5/16TTD JL 135SP HSS TIN-6/TUBE THUNDESKU: 012820TYPEHigh Speed Steel TiN CoatedSIZE5/16Quantity*Add to CartFEATURES135° self-centering split point to prevent walkingTYPEThunderbit TiN T1HDG