Drillco 1000N Series Nitro 8 Piece High-Speed Steel Reduced Shank Drill Bit Set, Black and Gold Oxide Finish, Round Shank, Spiral Flute, 118 Degrees Split Point, 9/16" - 1" in 1/16" increments

Product description

• High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
• 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
• 8 Piece reduced shank S and D drill set