Mountain 55418 MTN55418 Mountain 9/32" Black Oxide Drill Bit
Features and Benefits:
- Black Oxide treated for wear resistance and greater lubricity
- Made from premium grade high speed steel
- 135 degree split point
- Designed to drill common steel (flat bar, angle iron, tubing), wood and plastic
- Manufactured to Aerospace NAS 907-B specifications
Black Oxide drill bits are manufactured from industrial high speed steel, surface treated for high performance and long life. Also no center punch needed: Mountain Quick-cut points are self centering and penetrate faster with less pressure, will not "walk" or "wander" at the starting surface. Made in the USA.
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