Quality Materials: Quality tungsten steel hard metal blade for sharp and durable, high hardness, precise positioning, smooth cutting and impact resistance. Dovetail Shape: Router bit with distinctive dovetail shape, fast and clean cutting on your project material, ideal for projects of any complexity. Design: Adopts welding process, very sturdy. To prevent debris from flying during work, please wear goggles and gloves. Package Content: 5 pcs x 8mm shank dovetail cutter kit, diameter: 1/4" 1/2" 3/8" 5/8" 3/4". Avoid materials other than wood and metal materials, sand, iron, etc. Applications: Router bits for various milling work are suitable for solid wood panels, MDF, chipboard, design profiles, etc. They are also suitable for milling grooves on frames, pylons and others.