General description 8mm Shank Wood Router Bit with 4 Blades is a versatile finishing pattern router bit set designed for both professionals and hobbyists. This kit includes three bits with varying cutting heights and diameters, making it ideal for edging, trimming, graining, and grooving in all woodworking projects. Technical specifications Shank diameter: 8mm Cutting heights: 30mm, 40mm, 50mm Cutting diameters: 14mm, 16mm, 16mm Material: High quality C3 micro-grain carbide with Teflon coating Design: 4-flute with a closed ball bearing Compatibility and accessories Compatible with CNC routers, automatic routers, handheld routers, and table-mounted portable routers Usage Primarily used for wood trimming, lining, graining, and grooving Efficient for edging and smoothing a variety of materials Other information Features an anti-kickback design for safety Offers stable precision, fine workmanship, and durable rust resistance Ensures clean cutting, smooth rotation, and fast operation