Description:Fiber oilstone (commonly known as the super thin stone) combine a high ceramic fiber with thermoplastic resin, with high hardness, wear resistance and not easy to .Except for the hand- grinding, and is suitable for application of pneumatic, electric reciprocating grinding machine. It is the most perfect used in the ultrasonic vibration machine.Ceramic fiber oilstone can grind the mold with a of different materials. The most suitable for general difficult grinding processing, such as narrow trench wall, ditch, hole, scratch, ribs and -fine. Especially for quick removal hardening surface of mold after .Grinding can use water or oil as grinding agent.Grit size: P150,P180,P220,P320,P400,P600,P800,P1000,P1200 ( 1 piece each, 9 pieces in )Suggestion:220 , 320 for removing hardening surface of mold after electric discharge machining and mechanical rough cut.400 , 00 for removing the fine machining marks and general grinding.800 , 1000 , 1200 , 1500 used for fine grinding or polishing the mirror processing.color: random colors, 't accept the specified colorMaterial:Alumina Fiber WhetstoneSize:100 * 4 * 1mm Package Contents: 9 * fiber whetstone 1 * clampOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.