Tongue and groove joints are ideal for create flat, even joints for flooring, wainscoting, panels and tabletops Industrial grade micro grain carbide blade, build-up heat resistant teflon coating; Solid hardened steel bodies with anti-Kickback design Cutting Length: 13/16 Cutting Diameter: 1-1/8 Cutting Depth: 1/4 Total Length: 2-1/4 For cutting plywood, hardwood/softwood on router tables only. (Note: Not for use on hand-held routers) Avoid cutting ferrous metal and non wood materials, such as: steel, iron, sand, etc Features Industrial Quality Router Bits C3 Micro-grain Tungsten Carbide Cutters Build-up Heat Resistant Teflon Coating Solid Hardened Steel Bodies with Anti-Kickback Design Specification: Blade Material: Industrial grade micro grain carbide Body Material: Carbide Tipped Shank Size: 1/4 Cutting Length: 13/16 Cutting Depth: 1/4 Overall Length: 2-1/4 Largest Diameter: 1-1/8 Number of Flutes: 2 Minimum Stock Thickness: 1/2 Maximum Stock Thickness: 13/16 Package included: 1 x Tongue Router Bit 1 x Groove Router Bit