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Silver and Deming 1/2" reduced shank - with 3 flats
Common flute and overall length for minimal adjustment during tool changes
Nitride Surface treatment, that gives hard, protective layer to the drill (increases hardness without increasing brittleness), which is measurably harder than high speed steel
Body and clearance are black and gold surface treated for maximum lubricity
The 118 degree split point reduces thrust and eliminates walking at the drill point
Precision ground for a high degree of concentricity between shank and body diameter
3" flute length, 6" length
Application:
Recommended for use in stainless steel and other hard metal
These drills are not recommended for enlarging existing holes
Recommended for use with 1/2" portable drill chuck
