Package contents - Four 1/4" shank template trim router bits with cutting lengths of 5/16", 7/16", 5/8", and 3/4". High quality materials - 1/4" shank - Heat resistant Teflon coating - C3 industrial-grade micro-grain carbide tips - High-quality alloy steel bodies - These features provide superior wear resistance and long life Multifunctional - Flush-trim templates and patterns for a wide range of projects - Ideal for routing door hinge mortises using a hinge template - Equipped with a shank bearing for precise template routing across various patterns Applications - Suitable for dense wood, laminate, particleboard, and plywood - Delivers very smooth cuts - Designed for woodworking enthusiasts and professionals - Cautions: avoid cutting metal and non-wood materials such as steel, iron and sand Universal compatibility - 1/4" tool holder fits most major desktop router workbenches - Designed for CNC, handheld, and table-mounted routers - Not compatible with electric drills or drill machines