10-pc. Mach-blue Impact Drill Bit Set, 1/4 In.

Spyder 10pc 1/4in impact Mach-Blue drill bit set

• 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
• 10pc set includes 1/16, 5/64, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8-in bits with case