Professional Woodworking Tools - Perfect for cutting precise dados and grooves for shelving and cabinet projects and countless other simple straight-cut applications Industrial Grade Router Bits - Industrial grade router bits made of premium C3 micro-grain carbide with build-up and heat resistant Teflon coating, brazed for maximum strength Anti-Kickback Design - Solid hardened steel bodies with anti-kickback design for secure installation, cuts all composite materials, plywood, hardwood and softwood T-Track Bolt Slots - T-Track router bit cuts T-slots with bolt heads 3/8" wide x 2/16" tall and up to 1/4" shank thickness; bolt heads 1/2" wide x 1/4" tall and up to 1/2" thick. Can also be used to make slatted wall boards. Features: Industrial grade router bits. C3 micro-grain tungsten carbide cutter. Hardened solid body with anti-kickback design. Build-up and heat resistant Teflon coating. Heat resistant coating prevents build-up of sawdust, resin and pitch. Totally enclosed and lubricated. High hook and shear angles allow cutters to slice smoothly into stock, producing clean chips. Cuts all composition materials, plywood, hardwood and softwood. Notes: Due to light and screen settings, the color of the actual item may vary slightly from the pictures. Please allow slight dimension difference due to manual measurement. Specifications: Blade Material: Industrial Grade Micro-Grain Carbide. Body Material: Solid Hardened Steel. Shank Size: 8mm. Contents: 2 x T-Slot and T-Track Router Bits.