Spyder step bits with Mach-Blue Coating that reduces heat and wear

• 50x more holes and 2x faster than titanium or black oxide coated step 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 135-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, stacked materials and other difficult to drill alloys

• Made in the USA

• 10-Step bit, 1/4 - 1-3/8-in

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