WoodOwl Deep Cut Ship Auger Bits - Designed for making deep, smooth cuts in utility poles, railroad ties, pressure-treated lumber, wet or frozen wood. Spurred cutting edge for fast and even cutting. Course, burr-free lead screw for quick, on-target starts without material build-up. Unique twist design for clean chip removal even in deepest cuts. Teflon-coated to resist heat and friction. Perfectly concentric for even and easy cutting of accurately sized holes. Carbon steel construction with precise heat-treat and hardening processes for strength and durability.