The Mastercraft 50 Bit Professional Carbide Tipped Router Bit Set includes 50 high-quality router bits with a 1/2" shank size, suitable for use with router tools. Made of durable carbide material, these bits are designed for cutting and feature a multi-profile design. With a lifetime manufacturer warranty from Yonico, this set is a reliable and durable choice for various woodworking projects. The set includes 50 pieces with a diameter of 1/2 inches each, making it a comprehensive and versatile addition to any workshop.