Speedbor 88714 2000 Long Shank Wood Boring Bits Blue-Groove drill bit point and cutting edge for fast chip removal Double-cutting spurs scribe the outside of the hole, reducing breakout Flat drill bit has a large, 3-flatted style shank for added durability Extra-long wood drill bit provides extended reach Not for use with bit extensions or drill presses 7/8" diameter and an extra-long 16" length for longer reach, includes pouch Bore 2 times faster, last 3 times longer Micro-groove point and cutting edges with extended spurs for faster, cleaner boring action Made from Irwin's own special grade tool steel, heat-treated for extra strength For 1/4" and larger electric drills; not for use in drill press