Description: Fiber whetstone (commonly known as ultra-fine stone) is a combination of high-purity ceramic fiber and thermoplastic resin, with high hardness, wear resistance, and not easy to break. In addition to manual grinding, it is suitable for pneumatic and electric reciprocating grinding machines. The most perfect ultrasonic vibration machine. Ceramic fiber whetstone can grind molds of many different materials. Most suitable for generally difficult grinding, such as narrow groove walls, grooves, holes, scratches, ribs, and micro. Particularly suitable for removing hardened surfaces from molds after . Grinding can use or as abrasive. Granularity: P220, P320, P400, P600, P800, P1000, P1200 220# and 320# are used for removing hardened surfaces from molds after and mechanical rough grinding. 400#, 600# are used for removing fine machining marks and general grinding. 800#, 1000#, 1200# are used for fine grinding or polishing mirror treatment. Color:random color (specified color is not