Features: This flush trim router bit set features a double edging cutting design for efficient wood trimming, with integrated ball bearing for smooth operation on various wood materials. Crafted from 45# carbon steel with wear resistant blade and 8mm shank, these router bit include closed ball bearing to minimize frictions, ensuring accurate cut on plywood, hardwood, and panel. Ideal for professional woodworkers, furniture maker, and DIY enthusiasts requiring high precise trimming, copying, and edging forming tasks in woodworking projects. Perfect for cabinetmaking, door/window frame trimming, and intricate engraving working on materials like hardwood, softwood, or composite panel using handheld routers or table mounted milling machines. This woodworking tool set includes four flush trim bit with universal 8mm shank compatibility, engineered for repeatable precise and extended durability across multiple applications. Specifications: Size:Approx.12.7x58.4x5mm/0.5x2.29x0.19inch Size:Approx.12.7x71.1x8mm/0.5x2.79x0.31inch Size:Approx.12.7x96.5x8mm/0.5x3.79x0.31inch Blade diameter mm: 12.7 Cutting method: Milling Blade shape: rectangular Processing diameter ranging: 10-20mm Product Features: Edging Decoration Rotation direction: Rotate counterclockwise Cutting direction: Number of milling edges: 2 Number of slots: 2 Applicable machine tool: machining center Package Includes: 1 Set Flush Trim Router Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.