88820 Speedbor Spade Drill Bit, 1-1/4 In., 6 In. Oal

The Irwin 88820 Speedbor Spade Drill Bit is a 1-1/4 inch wood boring bit designed for drilling clean, efficient holes in wood with standard drill chucks. This flat-flute spade bit features a grooved hex shank that grips securely in quick change chucks and drill extensions, preventing slipping during operation.

Speedbor bits solve common drilling problems: the blue groove point and cutting edge accelerate chip removal for faster drilling, while double cutting spurs scribe the outside of each hole to minimize splintering and breakout. The grooved hex shank design ensures the bit stays firmly seated in the chuck, delivering consistent performance under load.

Features and Benefits

• Double Cutting Spurs: Scribes the hole perimeter to reduce breakout and splintering on wood surfaces.
• Blue Groove Point and Cutting Edge: Removes chips quickly and efficiently for faster drilling performance.
• Grooved Hex Shank: Prevents slipping in drill chucks and extensions; compatible with all standard quick change chucks.
• Flat Flute Design: Optimized for wood boring applications with reliable cutting performance.

Specifications

• Brand: Irwin
• Model: 88820
• Bit Diameter: 1-1/4 inches
• Overall Length: 6 inches
• Shank Diameter: 1/4 inch hex
• Shank Type: Grooved hex shank
• Flute Style: Flat flute
• Point Type: Blue groove point with double cutting spurs