Viking Super Premium Ultra Bor Reduced Shank Jobber Length Drills Type 278-UB: 15-Pc Set 1/16-1/2 by 32nds – 3/8″ Reduced Shank

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Viking Super Premium Ultra Bor Reduced Shank Jobber Length Drills Type 278-UB: 15-Pc Set 1/16-1/2 by 32nds - 3/8" Reduced Shank

Black & Gold

• Special Hi-Molybdenum tool steel.
• 135° split point for fast penetration and accurate starting without 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.
• 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.
• Recommended for use in work hardening grades of stainless steel and other hard metal drilling applications.
• Drill is a Type 240-UB with a 3/8" reduced shank.