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2454967
438X72
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Short DescriptionTAPER LENGTH DRILL BIT FRACTIONAL INCH 51/64" 0.7969 118°
Long DescriptionThese drill bits come in standard sizes expressed in fractional inches. The bits have a black-oxide finish that retains lubricants to improve the bits' wear resistance and chip flow. Black-oxide bits should only be used for drilling ferrous metals. High-speed steel drill bits provide more flexibility and absorb more shock and vibration than cobalt and carbide drill bits, making them suitable for use in manual drilling machines and handheld power tools. They may leave a rough finish on the hole. These bits have spiral flutes that evacuate chips as the bits drill into a workpiece.
Brand/Manufacturer NameGRAINGER
Manufacturing Part Number438X72
Technical Attributes