IRWIN 88809 Speedbor 9/16″ × 6″ Spade Bit

Drill faster and cleaner with the IRWIN 88809 Speedbor 9/16″ Spade Bit—engineered for both professional tradespeople and serious DIYers. The patented Blue-Groove™ point and cutting edge enable up to 4× faster chip removal than standard spade bits, while dual chamfered spurs score the hole perimeter for cleaner entry and minimal tear-out. A grooved 1/4″ hex shank ensures a secure, slip-resistant fit in quick-change and impact-ready chucks. Made from heat-treated high-carbon steel, this bit offers long-lasting sharpness and smooth cutting—perfect for framing, rough carpentry, and general wood-boring applications.

Key Features:

• Patented Blue-Groove™ point and cutting edge for rapid chip removal and faster drilling

• Chamfered dual spurs scribe clean hole edges to reduce splintering

• Grooved 1/4″ hex shank provides slip-free grip in quick-change and impact chucks

• 10% larger shank diameter increases bit strength and stability

• Heat-treated high-carbon steel resists wear and maintains cutting performance

Specifications:

• Cutting Diameter: 9/16″

• Overall Length: 6″

• Shank: 1/4″ hex