3M 7010493126 685BN Wheel, 8 in Dia Wheel x 1/8 in THK Wheel, 2.362 in Center Hole, D220 Grit, Diamond Abrasive

3M, 7010493126, Wheel, Series: 685BN, 8 in Wheel Diameter, 1/8 in Wheel, 2.362 in Center Hole, D220 Grit, Diamond Abrasive, 2200 to 3400 sfpm Fluting, 4500 to 6500 sfpm Gashing, 4500 to 5500 sfpm OD and End Work Maximum, Resin Bond, Applicable Materials: Carbide, Non-Ferrous Metals, PCD, Cermet's and Polycrystalline CBN/Diamond (PCBN), Wheel Type Number: 1FF1

The 3M diamond resin wheel 685BN is used in the production and sharpening of carbide cutting tools. This general purpose wheel is designed to give you the best form retention and the fastest cut rate when used with water based lubricants. Designed for precision these resin bonded diamond wheels are designed for high performance grinding on carbide. The 3M diamond resin wheel 685BN line is specifically designed for the production and sharpening of cutting tools, including end work, gashing and cutting primary and secondary relief edges. Primary relief involves removing material directly behind the cutting edge to enhance chip clearance. For secondary relief, as light bevel is ground next to the primary relief. End work grinds a small relief angle on the tip of the tool, while gashing adds a slot along the cutting face to allow for chip flow. Each of these processes require the highest level of quality that the 3M diamond resin wheel 685BN provides. High quality bonding these super abrasive wheels also use a resin bond which is specially designed to resist thermal and chemical deterioration, which can occur during high speed grinding. This rated bond provides excellent from retention and long wheel life for precision work on tool metals like carbide. This wheel requires a water based coolant . The right wheels for the job 3M provides a broad portfolio of super abrasive wheels used for your round tool relief and clearance angle applications. They feature a variety of metal cores, including aluminum, steel, composite and copper and can be cut with custom arbor holes to fit customer specifications. From short runs and re-sharpening to "lights-out" and long production runs, 3M has the wheel design to meet your needs.