This comb is made from fine-grain carbon steel that is heat treated to create a hard, wear-resistant surface. A cryogenic process brings the blade down to extremely low temperatures before it is hand lapped, producing a harder edge with a smooth cutting finish. The 13-tooth pattern is designed to remove coat evenly while leaving a neat, finished appearance. It attaches to professional hand pieces and fits 3-inch shearing heads on compatible Oster shearing machines. No assembly beyond snapping the comb onto a compatible shearing head is required. Groomers use it for close, show-quality trimming of thick or coarse coats.