ITEM NAME:1/2'' Shank Router Bits Rail Stile Router Bits Woodworking Engraving Tools Description: - High sharpness blade, hairless cutting smooth - High-precision grinding technology, super wear-resistant - Applicable solid wood, hardwood, particleboard, MDF, woodworking engraving machine, CNC machine, trimming machine - High hook and shear angles allow cutters to slice smoothly into stock producing clean, splinter free - The design of Rail and stile bits can make attractive drawer fronts, table tops, plaques and moldings Specification: - Material: Hard Alloy Size Chart: #1: 1/2''x 2'' Shank Diameter: 1/2" (12.7mm) Largest Diameter: 2'' (50.8mm) More details you may get from the pictures Package Included: 1 Piece Router Bit Note: There is 2-3% difference according to manual measurement. Please check the measurement chart carefully before you buy the item.High sharpness blade, hairless cutting smooth. More details you may get from the pictures.