When engine manufacturers are expected to meet strict criteria and performance objectives MICRO-MESH® is the proven choice for the job. Our MICRO-MESH® 600 MX is the preferred abrasive for this task, achieving in most cases better surface roughness averages by 1 micro inch and improved bearing ratios up to 10 percent. If indexed properly, MICRO-MESH® can polish up to 5 cams/crankshafts more than competitive products! MICRO-MESH® tapes are 500 foot in length and are wound onto a keyed 5/16″ core. 1 Tape per unit each.