Manufactured from premium grade high speed steel, they have a heavy duty 135° split point for self-centering and reducing thrust. Gold and black surface treated for use in stainless steel and other hard metal drilling. The shank is reduced and triangle-shaped. Sizes smaller than 1/16" have the 118° standard point.
Expands the size range capacity of a 1/2" portable drill chuch. Common flute and overall length for minimal adjustment during tool changes. Precision ground for high degree of concentricity between shank and body diameter. Ideal for drilling in low and medium tensile strenth materials.
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