Irwin 88822 1-3/8" x 6" Speedbor Wood Boring Bits Features: Patented micro-groove cutting edge and spurs produce a smoother hole finish Double spur design scribes hole before chips are made, producing cleaner hole, less vibration All bits have a 1/4" hex shank that fits all drills and 1/4" [... more]
$11.89 Amazon.com
