04 Ago 3/4 Inch Drill Bit for Metal – Industrial Grade M35 Cobalt Titanium Aluminum …
M35 Cobalt with Titanium Aluminum Nitrite Coating - Our Drill Bits Contain 5% Cobalt with a Professional Grade TiAIN Coating. This Unique Blend of Materials Provides Exceptional Oxidation Resistance as Dramatically Increases the Overall Hardness & Durability Of the Bit....