Item Type: Double Bearing Flush Trim Milling Router Bit Materials: Cemented Carbide Specifications: 1/4x3/8x30 Package List 1 x Flush Trim Router Bit 1 x Storage Canister 1Smooth and Stable: The bearing router bit of the hollowing machine at the tip uses a double ball bearing guide to run your project template to ensure smooth operation. 2Compatibility: The flush trim mill bit is ideal for softwood, hardwood, plywood, laminate, oak, MDF and any hardwood processing. 3Excellent Cemented Carbide: This 1/4in shank flush trim router mill bit is made of cemented carbide and with fast hole opening capabilities. 4Rugged and Durable: Flush trim milling router bit can be providing toughness, wear resistance and high using performance. Rugged and durable. 5Wide Application: This flush trim bit can be used in any flush finishing situation and is an excellent tool for pattern or stencil work.