Cutting Wheel,Made of normal corundum. Medium hard bond. Reasonable price. Manufacture ... ,000rpmS-09150*2.5*22 5*3/32*7/8 Flat PatternCymbal Pattern80m/s10,200rpmS-10180*3.0*22.2 7 ... ,500rpmS-11230*3.0*22.29*1/8*7/8 Flat PatternCymbal Pattern80m/s6,600rpmS-12300*3.0*25.4 12 ... .2*25.416*1/8*1Flat Pattern80m/s3,800rpm Cutting Wheel