100% brand new and high quality Small size, easy to carry and store, convenient to use and with good performance. Polished by brazing diamond technology, the service life is twice as long as the traditional diamond coating rotation point, saving money. Used for edge cutting of stone, marble and granite, quartz stone, artificial stone, ceramic tile, etc. With great workmanship, can perfect replacement for the old one. Applicable to a variety of models such as seaming machine, trimming machine, edging machine and gong machine. Specifications: Material: Diamond Shank Diameter: approx 6.35mm/0.25 inches Note: 1.Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 2x/Set Router Bits