Eastwood Company 64686 Mach-Blue 1/4-in 10-Step Drill Bit HSS

The Spyder Stinger Mach-Blue Armor Plated high-speed steel (HSS) step drill bit from Eastwood Company delivers exceptional performance for precision drilling in sheet metals and other demanding applications. This 10-step bit drills holes ranging from 1/4-inch to 1-3/8-inch, making it ideal for electrical work, enlarging existing holes, and drilling stainless steel, mild steel, aluminum, and stacked materials.

Key Features:

• Mach-Blue Armor Plating: Super-hard coating retains sharper cutting edges longer, reduces heat build-up and cutting friction, and delivers 50x more holes than titanium or black oxide coated bits
• Advanced M-Series Alloy Construction: Premium tool steel with proprietary heat treatment increases durability, rigidity, and breakage resistance
• 135-Degree Split Point Geometry: Self-centering design prevents walking or wandering, even on pre-hardened or curved surfaces
• Impact-Rated 1/4-in Speed Hex Shank: Won't slip in conventional 3-jaw chucks and works perfectly with quick-change impacting power tools
• 2x Faster Drilling: Cuts through tough materials twice as fast as standard titanium or black oxide step bits
• Made in the USA: Professional-grade quality for extended bit life and precision holes

This step drill bit is the professional's choice for high-volume drilling applications where bit life, speed, and accuracy matter. The optimized cutting geometry and advanced coating technology ensure consistent performance and increased productivity in even the toughest drilling conditions.