SPT-29 MAGNUM SUPER PREMIUM DRILL BIT SET

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SPT-29 MAGNUM SUPER PREMIUM DRILL BIT SET
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29 Piece set. Fractional. Special Hi-Molybdenum tool steel. 135 split point for fast penetration and accurate starting without a center punch. Precision ground point, flutes, body, clearance and drill diameter for the ultimate in accuracy and performance. Body and clearance are gold surface treated for maximum lubricity. Drills are heat treated at 2185 F and then nitro-carburize finished at 950 F to be measurably harder than high-speed steel. Space age nitro-carburized steel withstands substantially higher drilling temperatures while maintaining sharpness. Type 135-AG, Manufactured to NAS 907C specification. Made in USA.

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$94.99

NOR66490




Recommended for use in work hardening grades of stainless steel and other hard metal drilling applications. Includes sizes: 1/16 - 1/2 by 64ths.