Features： 1、2 Flute And Straight Shank: Alloy cutter head with 2 flute and straight shank, solid carbon steel body with anti backlash design 2、For CNC Machines: Rail stile router bits come with 1/4in shank, suitable for CNC and other automatic desktop portable machines 3、For Carpentry: This roman ogee bit is very suitable for carpentry, trimming, grooving, wood grain projects, very practical 4、For Many Materials: Suitable for MDF, solid wood, particle board, plywood, wooden door frames, wooden window frames, cabinets and boxes, etc. 5、Strong And Sturdy: High wear resistance, high accuracy grinding technology, strong and sturdy. This durable milling cutter set is made of good quality materials, allowing you to complete all projects with confidence Specification： Item Type: Rail Stile Router Bit Material: Main Body: Carbon steel, Bit: Alloy Specification: Shank Diameter: 1/4in Cutter Head Diameter: Approx. 41mm / 1.6in, 63mm / 2.5in Package List： 3 x Milling Cutter 2 x Gasket 3 x Storage Box