Features Preferred Cemented Carbide --- The double bearing trimmer is made of excellentt quality carbide, which can open the hole quickly and is very durable. Paint Coating --- This double bearing trimmer is coated with paint to prevent rusting and extend the life of the trimmer. Silky And Stable --- Router bearing bits use dual ball bearing guides at the tip to run your project template, ensuring stable and easy operation. Wide Application --- This flush dressing bit can be used in any flush dressing situation and is an excellent choice for pattern or stencil work. Compatibility --- Flush trimmer cutters are perfect for softwood, hardwood, plywood, laminate, oak, MDF and any hardwood processing. Specification: Item Type: Double Bearing Trimmer Material: Cemented Carbide Specification: Approx. 1/4x5/16x30 Package List:1 x Router Bit1 x Storage Tube Package List 1 x Router Bit 1 x Storage Tube