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5/16 Heavy Duty Jobber Drills, High Speed Steel - Pack of 6

The TiN (Titanium Nitrite) coating provides a super hard surface with high lubricity. The tool life may be extended 500% or more in high wear or very abrasive drilling applications. The heavy duty construction makes it ideal for hard metals work hardened stainless and other difficult to drill materials. Made in the USA.

Part # 400T120