Chicago-Latrobe Jobber Drill Set 80 pc HSS 57717

This Chicago-Latrobe 150 series jobber length drill bit set contains 80 high-speed steel drill bits including one each of wire gauge sizes #80 through #1 with a black oxide finish and a 118-degree conventional point for use in general-purpose applications on ferrous materials. High-speed steel (HSS) provides hardness for wear resistance and the black oxide finish acts as a lubricant to reduce wear while promoting chip and coolant flow. A jobber length drill bit has a versatile midrange drilling depth that is a common choice for general-purpose drilling applications. The round shank accommodates most drill chucks.The set comes in a gray epoxy-coated steel index case with labeled compartments for identification and organization.