Product details:

Auger bit is heat-treated and tempered for durability. It has a unique precision design and cut screw point to resist breakage. Faster and smoother drilling action is provided by dual-helix construction with twin cutting edges. It minimizes warping and delivers long lasting performance. Quick gripping power, superior penetration and extra-long life is provided by heavy-duty lead screw. It can be re-sharpenable for extended tool life. It measures 1.75 Inch x 1.75 Inch x 8.75 Inch and has a straight shank of size 7/16 Inch x 7/16 Inch.