Solid centre design provides extra rigidity while boring
The flutes are ground behind the lands to funnel chips to the inside of the bit and away from the outside diameter, producing a faster, cleaner cut
Single-spur cutting edge scribes the circumference of the hole for a smoother finish
Full-length heat treated bit guards against bending in heavy-duty applications and streng thens the twist where the greatest strain occurs
Coarse screw point provides fast boring in hard and soft woods