Spyder Stinger Mach-Blue 5/16″ X 4-1/8″ Hss Twist Drill Bit

Description

• 100x more holes and 8x faster than titanium or black oxide coated drill bits
• Super-hard Mach-Blue Armor Plating retains sharper cutting edges, and reduces heat build-up and cutting friction
• Durable drill bit for long drill life, precision holes, and increased speed and productivity in tough to drill applications
• Impact rated 1/4-in speed hex won’t slip in conventional 3-jaw chucks and is ideal for use in quick change impacting power tools
• Optimized 137-degree self-centering split point cutting geometry won’t walk or wander — even on pre-hardened or curved surfaces
• Advanced M-Series alloy tool steel construction and proprietary heat treatment increase drill bit durability, rigidity and breakage resistance
• Ideal for drilling stainless steel, mild steel, aluminum, wood, stacked materials and other difficult to drill alloys
• Made in the USA

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