Irwin Single Spur 11/16" x 18" Auger Bit with 7/16" Hex 47911

The single spur, cutter, and side lip, bore through creosoted, and salt-treated poles without clogging, binding, or stopping to clear chips. Extra-long twist is ideal for boring large poles and construction timbers. 7/16" hex shank for use with most impact drills. Medium-fast screw point is ideal for general wood boring applications. Full-length heat treating guards against bending in heavy-duty applications and strengthens the twist where the greatest strain occurs.


Diameter: 11/16"

Length: 18" Overall, 15" Twist

Shank: 7/16" Quick Change Hex

Weight: 1.5 lbs