Features: Can be used without the bearing as a standard straight bit, great for combined plunge-cutting and pattern/template routing. Carbide cutters provide superior wear resistance and long life. Suitable for cutting composition materials, plywoods, hardwoods, and softwoods. For increased work piece visibility, use shank bearing flush trim bit in a handheld router allowing the template to be positioned on top of the work piece. There are two types for alternative, one is 4 pieces, 32mm, aonther is 5 pieces, 18mm, you can select yours accodring to demands. Specifications: Material: Stainless Size: 6x32mm/0.2x1.3" 6x18mm/0.2x0.7" Package Includes: 1 Set( 4/5 pieces) Wood Router Bit. note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.