Precision Twist R56 7/8 Black & Bright High Speed Steel Reduced Shank Drill Bits 118 Degree Point – 1/2 Shank 091456

The Precision Twist R56 Jobber-length, uncoated, general-purpose, round shank drill bit drills holes into a wide variety of metals and synthetic materials with best performance with steel, stainless steel, cast iron, titanium, and nickel. It can drill to a depth up to four times the diameter of the drill size. Flute length is three inches, overall length is six inches, with a half inch, reduced shank. Combination black oxide and bright finish improves lubricity, resists corrosion, and will not chip or flake off. Black oxide also helps to prevent buildup and welding of material on the cutting edge when working with iron and steel. Reduced shanks are smaller than the drill diameter, so they can drill holes larger than the typical chuck capacity.