87912 Speedbor Spade Drill Bit, 3/4 X 4 In., Hex Shank

The Irwin 87912 Speedbor spade drill bit is engineered for fast, clean wood boring in tight spaces. Its compact 4-inch length fits easily between wall studs, rafters, and deep inside cabinets, making it ideal for trim work, electrical routing, plumbing installations, and any project where space is limited. The 3/4-inch cutting diameter provides a generous hole size for wiring, hardware, and fastener applications, while the reliable construction delivers consistent performance and durability.

This spade bit reduces awkward maneuvering and allows confident work in confined areas without sacrificing speed or accuracy. The thoughtful design and proven performance make it a staple in professional and DIY toolboxes where precision and convenience matter.

Features and Benefits

• Blue groove point and cutting edge: Accelerates chip removal for faster drilling and cleaner holes.
• Double cutting spurs: Scribe the outside of the hole to reduce tearout and breakout on entry and exit.
• Grooved hex shank: Prevents slipping in the drill chuck or bit extension and fits all standard quick-change chucks.
• Compact 4-inch length: Reaches into tight spaces between studs, rafters, and inside cabinets with ease.
• 3/4-inch diameter: Delivers the hole size needed for wiring, plumbing, and hardware routing.
• Flat flute design: Ensures clean, straight holes with reduced risk of misalignment.

Specifications

• Brand: Irwin
• Model: 87912
• Type: Spade drill bit, flat flute
• Cutting diameter: 3/4 inch
• Overall length: 4 inches
• Shank diameter: 1/4 inch
• Shank style: Hex (grooved)
• Compatible with: Standard quick-change chucks