Drillco

1000N Series Nitro 1/2" Shank S&D Drills

item code: 1000N164

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Manufactured from a premium grade of M-7N molybdenum high speed steel.  The NITRO 118 degree Split Point S & D drill with a Nitride Surface treatment, that gives hard, protective layer to the drill (increases hardness without increasing brittleness), which is measuably harder than high speed steel.  Body and clearance are gold and black surface treated for maximum lubricity.  Recommended for use in stainless steel and other hard metal drilling.  The 118 degree split point reduces thrust and eliminates walking at the drill point.