[Tungsten Grinder Bits]: These carbide cutting burrs feature a 1/4 inch shank and are made from tungsten carbide. Total length: 70mm. Cutting diameter: 1/2 inch. Shank length: 45mm. Shank diameter: 1/4 inch. Suitable for use with rotary tool accessories.[DOUBLE CUT DESIGN]: The crossed groove lines on the carbide rotary burr head make it ideal for cutting softer materials such as wood, plastic, and aluminum.[Durable]: Made with high hardness material, these burrs offer long-lasting performance, maintaining sharpness and durability.[LONG WORKING LIFE]: Solid carbide construction provides a working life up to 10 times longer than high-speed steel and significantly longer than traditional grinding wheels.[Usage]: Carbide rotary burrs are widely used in metalworking, tool manufacturing, engineering, and model building.Specifications: Cutter diameter: 0.47 inch / 12mm Length of cut: 1 inch / 25mm Cut type: Double cut Cutter shape: Cylindrical Warm Tips: Ensure the burr shank is fully inserted and securely clamped in the collet. Always wear eye protection to prevent injury from flying debris. Confirm the correct size before purchasing. Size: Total length 70mm Material: Cemented carbide Color: Silver Package Contents: 1 x Cylindrical Rotary Burr Tool Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.