Irwin 1866033 Wood Speedbor Max Drill Bit, 1/2" x 4" 3 - Way Torsion zone absorbs torque peaks

Torsion zone absorbs torque peaks reducing stress and the tip

The core comes out quickly and cleanly

Magnetic tips

Extended throw up to 24 ft

textured bottom for safety

Irwin 1866033 Wood Speedbor Max Drill Bit, 1/2" x 4" 3 - Way Torsion zone absorbs torque peaksHighlights: Size: 1 2" 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