Premium MaterialMade of strong hardened steel, durable. High precision and great solidity. High Quality and Sturdy - Industrial grade router bits, high quality carbide cutter with brazing for maximum strength. Product FeaturesStable precision, fine workmanship, durable rust, clean cut , smooth rotation, fast operation, significantly improved service life. The cutting material has no burrs. Product FeaturesStable precision, fine workmanship, durable rust, clean cut, smooth rotation, fast operation, significantly improved service life . The cutting material has no burrs. Size Shank diameterAbout 8mm. High strength; Head diameter: 6mm, 8mm, 10mm, 12mm, 14mm, 18mm, 20mm. Professional Woodworking Tools7 kinds of cutter heads for different applications, to meet a variety of cutting needs. Mainly used for cutting and smoothing a variety of materials such as wood, plywood, MDF and other wood composite materials, etc. Premium Material Made made of strong, durable hardened steel. High precision and high strength. High quality and robust - Industrial quality router bits, high quality carbide cutters with brazing for maximum strength. Product features< /p> Stable precision, fine workmanship, durable rust, clean cut, smooth rotation, fast operation, significantly improved service life. Cutting material has no burrs. Professional woodworking tools 7 kinds of cutter heads for different applications, to meet a variety of cutting needs. Mainly used for cutting and smoothing a variety of materials such as wood, plywood, MDF and other wood composite materials, etc. Features: Materials: hardened steel. Stem diameter: Approximately 8 mm. Head diameter: 6mm, 8mm, 10mm, 12mm, 14mm, 18mm, 20mm. Contents: 7 x Straight Burr Bits ( 6mm, 8mm, 10mm, 12mm, 14 mm, 18mm, 20mm) Advantage: Good quality: Reinforced hard metal cup and carbon steel shank Precision ground shank for a stable grip in the collet. Ideal choice for all joiners, carpenters, interior builders and other DIY enthusiasts. For watering and grooving, for refining wood projects. With our 8mm router bit, the absorption of all common brands and power tool routers is guaranteed. Note regarding the 'use: The speed of the cutter must be adapted to individual use, for example depending on the workpiece and the feed rate. When of the milling, the temperatures are often very high due to the high friction, so the milling area must be cooled properly. Note: the data are manual measurements , please allow 1-5cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.