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

• Proprietary Mach-Blue™ Armor Plating is a super hard surface plating that retains sharper cutting edges, and reduces heat build-up and cutting friction – resulting in faster cuts and exceptionally long drill life.
• Impact rated 1/4" speed hex won’t slip in conventional 3-jaw chucks and ideal for use in quick change impacting power tools.
• Optimized 135° 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 sheet materials and other tough-to-drill alloys.
• 3/16" To 7/8" x 9 Steps
• MADE IN USA

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