3M Polyimide Hybrid Bond CBN Wheels and Tools, 11V9, 3-3/4X1-1/2X1-1/4, X=1/8 B220 164PL, U=3/8 - MMMPBBW41205

3M™ CBN Polyimide Wheel 164PL is used for grinding primary and secondary relief angles on cutting tools made of tool steel and high speed steel. This general purpose wheel offers high cut rates, increased form holding, and increased thermal stability during higher temperature grinding operations.