Irwin 1866036 Wood Speedbor Max Drill Bit, 7/8" x 4" Carving At temperatures outside of this

At temperatures outside of this range

but costs less

Replace every 6 months/300 gallons to ensure clean

Installs in/under kitchen sink or counter

Irwin 1866036 Wood Speedbor Max Drill Bit, 7/8" x 4" Carving At temperatures outside of thisHighlights: Size: 7 8" x 4" Three cutting spurs for faster, cleaner holes, less breakout, and extended drilling life Full screw point tip allows bit to self feed for ease of drilling Tapered tri flute design for faster chip ejection and less binding 1 4" quick change shank reduces slipping in standard chucks and is compatible with all 1 4" quick change chucks, including impact drills. Ideal for holes up to 2" deep Six times faster than standard spade