Spyder Stinger Drill Bit Set – 10-Piece – High-Speed Steel – 1/4-in Hex Drill Shank

These Spyder Stinger high-speed steel (HSS) drills are of exceptional quality and durability. They also provide drilling performance and added value for the user. These drills are up to 5 times faster than titanium or black oxide coated drills. The exclusive Mach-Blue Nitro Armor coating is a super hard surface plating that retains the sharpest cutting edges and reduces heat build-up and cutting friction, resulting in faster cuts and longer bit life. The 1/4 inch hex shanks will not slip in conventional 3-jaw chucks and are designed for use with impact tools. The optimized 137° self-centring split point design prevents the bit from walking or wandering, even on pre-hardened or curved surfaces. They can be used on wood, stainless steel, mild steel, aluminum, stacked materials and other tough to drill alloys.

• 100X More holes and 8x faster than titanium or black oxide coated drill bits
• Super-hard Mach-Blue(TM) 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
• 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