These Wood Owl Ultra Smooth Double Cut auger bits have a patented double cut design that consists of two precision ground cutting edges and two flutes engineered to optimize drilling performance. This unique Double Cut design has cutting spurs that score the outside of the cut leading to extremely smooth holes with minimal blowout. These bits are 25-35% lighter than standard auger bits of similar size reducing fatigue from extended use. The precision cut lead screw will pull the bits straight and true through material without wandering These bits come PTFE coated to minimize friction and allow quick and easy cutting and chip ejection in the stickiest of woods. These bits can be used in cordless drills and hand braces. These bits are made from fully induction hardened high carbon steel for strength and durability. The bits feature 7/16” quick release hex shanks. Bits come in a plastic storage tube to protect when not in use.