Get fast, clean holes in wood with the Irwin Speedbor Blue Groove Spade Bit Set. These bits feature the patented Blue Groove cutting edge that shears wood fibers cleanly and channels sawdust out of the hole, reducing heat and bit walking. Double cutting spurs scribe the outside of the hole for reduced breakout. The 1/4" quick-change hex shank seats securely in any drill chuck or quick-release holder for fast bit swaps on the job.

• Patented Blue Groove cutting edge for clean, fast wood boring
• Double cutting spurs reduce breakout for cleaner holes
• Channels sawdust out of the hole to reduce heat buildup
• 6" shank length with 1/4" quick-change hex shank
• Includes 1/2", 3/4", and 1" bit sizes
• Designed for use in wood, plywood, and engineered lumber