Drill America D/ACO59/64 59/64" Reduced Shank Cobalt Drill Bit, 1/2" Shank, Drill America, D/ACO59/64 Shop By Category •New muffling system reduces sound

•New muffling system reduces sound level

Flexible Cylinder Hone: 3" Max Bore Diameter

D/ADIE17/32

1-1/16" GM Thermal Sensor Switch Socket: allows the removal and installation of thermal sensor switch on 1973 - 1977 GM vehicles

Drill America D/ACO59/64 59/64" Reduced Shank Cobalt Drill Bit, 1/2" Shank, Drill America, D/ACO59/64 Shop By Category •New muffling system reduces soundDrill America D ACO59 64 59 64" Reduced Shank Cobalt Drill Bit, 1 2" Shank, Drill America, D ACO59 64 Cobalt reduced shank drills are heavy Duty 135 Split Point, Cobalt Steel, Jobber Length, manufactured to National Aerospace standard 907. These drill bits display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel, and are especially effective in drilling tough, high tensile strength materials like