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Drill America 33 Piece m42 Cobalt Reduced Shank Drill Bit Set (1/2" - 1" x 64ths), D/ACO Series
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*Packaging of actual item may differ from photo shown
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About Drill America 33 Piece M42 Cobalt Reduced Shank
Drill America 33 piece 135 degrees split point heavy duty drill bit set comes in a metal case. Common flute and overall length for minimal adjustment during tool changes. Precision ground for high degree of concentricity between shank and body diameter. Ideal for drilling in tough, high tensile strength materials. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. Set include fractional sizes: 1/2" to 1" (1/64 Increments). 1/2-inches reduce shank.
