The router bits in the Bosch RBS020XW 1/4-in Shank Laminate Trim Router 3-Piece Bit Set are distinguished by a careful selection of materials, exactly calculated cutting geometry, long bit life, extra sharp cutting edges (ground with diamond honed grinding wheels), and low vibration operation as a result of a special casting process during manufacturing. The working lengths of all Bosch router bits have been matched to the normal thickness of standard solid wood and wood materials. Longer shanks are held more securely in the collet and allow utilization of the full working length of each bit. Bosch's patented micrograin carbide is designed to keep a sharp cutting edge up to 30 percent longer than standard micrograins in difficult woodworking applications, resulting in less frequent bit changes, added productivity, and reduced costs.