87914 Speedbor Spade Drill Bit, 7/8 X 4 In., Hex Shank

The Irwin 87914 Speedbor spade drill bit is designed for boring clean, precise holes in wood, especially in confined spaces where length and clearance are limited. The 4-inch overall length allows you to drill between studs, rafters, joists, and inside cabinets without awkward positioning. This bit delivers the straight, round openings you need for wiring, plumbing runs, hardware installation, and general woodworking without wandering or chatter.

The hex shank grips securely in drill chucks and quick-change bit extensions, preventing slipping under load. The 7/8-inch diameter accommodates common hole requirements across residential framing and finish carpentry. Whether you're a contractor, electrician, or DIY enthusiast, this compact spade bit reduces fatigue and saves time by eliminating the need for extension adapters or repositioning in tight work areas.

Features and Benefits

• Compact 4-inch length: Fits easily into narrow gaps between framing members and allows drilling in confined spaces without repositioning or awkward angles.
• 7/8-inch diameter: Provides a generous opening size for standard wiring, plumbing, and hardware installation needs.
• Hex shank design: Grooved hex shank grips securely in drill chucks and quick-change extensions, preventing bit slipping and ensuring consistent torque delivery.
• Blue groove point and dual cutting spurs: The cutting edge geometry produces faster chip removal and scribe lines that reduce breakout around the hole perimeter, yielding cleaner openings.
• Hardened cutting edges: Resist dulling and maintain sharp performance across multiple projects and dense wood materials.
• Flat flute design: Creates straight, round holes with minimal wobble for professional-quality results.

Specifications

• Brand: Irwin
• Model: 87914
• Bit type: Spade (flat flute)
• Diameter: 7/8 inch
• Overall length: 4 inches
• Shank diameter: 1/4 inch
• Shank type: Hex