Chicago-Latrobe Combined Plain Drill/Countersink, Length: 1-7/8 IN, Premium High Speed Steel, List Style: 217, Bright Finish, Fractional Size: 5/64 IN, Decimal Equivalent: 0.0781 IN, Metric Size: 1.98 MM, Drill Length: 5/64 IN, Size: #2, Angle: 60 DEG, Body Diameter: 3/16 IN, For Carbon Steel, Tool Steel, Alloy Steel, Cast Iron