DURABLE CUTTING HEAD: Cutter head is made of YG6 alloy.Incisive cutting edges increase work efficiency and product quality.It also has high wear resistance and long service life UPPER PEARL : Rounded bead tips create clean rounded profile edges with an added bead above the rounded profile making work more effcient PREMIUM QUALITY: Carbide cutters and steel shank. Premium Micro-grain Carbide Cutters for Long Lasting Performance PACKAGE INCLUDES: Router Bit Set 1, Rounded Edges, Above Shank,Note: Avoid cutting ferrous metal and non-wood materials such as steel, iron MANY USES: Suitable for a wide range of materials including MDF, solid wood, particle board, plywood, wood door frames, wood window frames, cabinets and boxes /p>