Whiteside Multi Side Bit - 16 Sides, 1/2 in. SH is a versatile router bit designed for creating precise joints in multi-sided projects such as planters, columns, and barrels. Often referred to as a "birds mouth" bit, it allows you to route a single notch in one edge of each stave or board, which enhances ease of assembly and increases the total glue area for a strong bond. This bit is i for 16-sided objects with material thicknesses up to 1 inch and works when used in a router table with a fence. The design supports both flush and ribbed construction, with ribbed construction for 16-sided projects to provide stronger joints. The bit’s carbide-tipped, two-wing design ensures durability and clean cuts. Adjusting the bit height affects the size of the rib or flushness of the joint, allowing customization based on your project needs. Manufactured by Whiteside Machine Company in Claremont, North Carolina, this bit features a 1/2 inch shank and a large diameter of 1-5/8 inches, making it a reliable choice for woodworkers seeking precision and quality. Model Number: 3516