Irwin 88706 Speedbor Blue-Groove Spade Wood Drill Bit

Irwin Speedbor Blue-Groove Spade Wood Drill Bit

The Irwin Speedbor Spade Wood Drill Bit delivers fast, clean boring in wood and is available in 3/8", 5/16", and 7/16" sizes to match a range of drilling tasks. Featuring a patented Blue-Groove cutting edge, chamfered cutting edges, and a reinforced shank, this Speedbor bit is engineered to remove wood chips aggressively while resisting wear over repeated use. It is impact accessible, so it can be run in standard drills or impact drivers, and its optimized point tip helps minimize splintering and control drilling speed for cleaner holes. Backed by next-generation SPEEDBOR engineering, the Irwin Speedbor Spade Bit is designed to cut twice as fast and last twice as long as standard spade bits, making it a dependable choice across the 3/8" to 7/16" size range for woodworking, carpentry, and general construction tasks.

Key Features

• Available Sizes: Offered in 3/8", 5/16", and 7/16" spade bit sizes to suit a variety of hole diameters.
• Blue-Groove Cutting Edge: Patented Blue-Groove design allows for aggressive removal of wood chips and faster drilling through wood.
• Chamfered Cutting Edges: Increased durability and longer bit life compared to standard spade bit edges.
• Optimized Point Tip: Helps minimize splintering on entry and exit while helping control drilling speed.
• Reinforced Shank: Engineered to withstand fast drilling speeds and aggressive cutting action without flexing.
• Impact Accessible: Compatible for use with impact drivers in addition to standard drills.
• Enhanced Performance: Engineered to cut twice as fast and last twice as long as standard spade wood bits.
• Next-Generation Design: Combines chamfered cutting edges with the patented Blue-Groove profile for consistent, efficient chip removal.

Technical Specifications

• Country of Origin: CHN
• Battery Included: No
• Individual Vs. Set: Individual
• Power Source: Non-Energy Using
• Available Sizes: 3/8", 5/16", 7/16"

Typical Applications

• Woodworking and Cabinetry Projects
• Rough Carpentry and Framing
• Drilling Clean Holes for Wiring and Plumbing Runs Through Wood
• General Construction and Renovation Work
• DIY and Professional Wood Drilling Applications
• Use with Standard Drills or Impact Drivers

Why Irwin?

Irwin engineers the Speedbor Spade Bit with a patented Blue-Groove design and chamfered cutting edges to deliver durable, high-performance wood drilling across the 3/8" to 7/16" size range. The reinforced shank and impact-accessible design make this bit a reliable choice for professionals and DIYers who need fast, clean, repeatable results on the jobsite. Built to cut twice as fast and last twice as long as standard bits, the Irwin Speedbor Spade Bit is engineered for demanding wood drilling applications where speed and durability matter.