Speedbor Wood Boring Spade Drill Bit, 3/8 X 16 In.

Introducing the Irwin Speedbor 3/8″ × 16″ Extra‑Long Wood Boring Spade Bit, a precision‑engineered tool designed for deep, clean holes in timber. Its elongated flat profile reaches up to sixteen inches, delivering consistent performance in framing, decking and cabinetry projects. The hardened steel construction resists wear, while the uniquely grooved hex shank locks securely in any standard drill chuck for maximum torque transfer.

Why it matters: This spade bit creates smooth‑sided openings that minimize wood tear‑out, helping you achieve professional‑grade results without extra cleanup. The dual‑spur geometry guides the cutter along the wall of the hole, reducing the risk of splintering and delivering a finished look that saves time and effort on the job site.

Key Features & Benefits:

• Extended Length Design: Reach depths of 16 inches for deep‑set fasteners, ideal for joist drilling and structural work.
• Grooved Hex Shank: Anti‑slip connection eliminates chuck rotation, providing steady power transfer during heavy‑duty wood drilling.
• Dual Spur Cutting Edge: Two precision‑ground spurs score the perimeter, preventing breakout and delivering clean, splinter‑free holes.
• High‑Strength Steel: Hardened alloy resists bending and wear, extending tool life for frequent professional use.
• Optimized for Direct Drill Use: Designed to operate without extensions, ensuring stability and accuracy in every application.

Finish your projects with confidence: The Irwin Speedbor spade bit combines depth, durability and safety features that set it apart from standard wood bits. Whether you’re installing joist hangers, running wiring, or creating pilot holes for large hardware, this tool delivers reliable performance and a flawless finish every time. Upgrade your drill kit today and experience the difference of a purpose‑built wood boring solution.

Specifications