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Drillco 400N Series High-Speed Steel Nitro Heavy Duty Jobber Drill Bit, Black...

Drillco 400N Series High-Speed Steel Nitro Heavy Duty Jobber Drill Bit, Black...

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Drillco 400N Series High-Speed Steel Nitro Heavy Duty Jobber Drill Bit, Black/Gold Oxide Finish, Round Shank, Spiral Flute, 135 Degree Split Point, 15/64" Size (Pack of 12) • Heavy duty nitride surface treatment increases hardness for drilling stainless steel and other hard metals • Jobber length drill bit has a midrange drilling depth • High-speed steel (HSS) provides hardness for wear resistance • Black and gold oxide finish resists corrosion and increases the hardness of the drill bit for additional wear resistance • Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging