Drillco 400N Series High-Speed Steel Nitro Heavy Duty Jobber Drill Bit, Black/Gold Oxide Finish, Round Shank, Spiral Flute, 135 Degree Split Point, 1/2" Size (Pack of 6)
[Product Information]
- 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
