Features: brand new and high quality Wide Compatibility: Works with PCB, SMT, CNC, Mold, plastic fiber, carbon fiber, hard wood, printed circuit board, and other precision parts processing. High Quality Material: Made of high quality tungsten steel, stable, firm and durable. Dimensions: 12.7x8x21mm/0.5x0.31x0.83inches. Application: Good performance, convenient and practical, suitable for home and professional use. Lightweight Size: Portable and small size, easy to store and carry, bring you convenience. Specifications: Material: Diamond + High Speed Steel Color: As the Picture Shows Type: 8mm, 10mm, 12.7mm Net Weight: 60g/0.13lbs Package Includes: 1x Diamond Woodworking Spiral Cutter Milling Cutter note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.