Section R. 408.10102 - Definitions; A to CRule 102.
(1) "Abrasive wheel-wheel" means a cutting tool that consists of abrasive grains held together by a bonding material.(2) "Blotter" means a flat disc of compressible material that is used to cushion the area of a grinding wheel coming in contact with a flange.(3) "Centerless O.D. grinding" means the precision grinding of the outer surface of any cylindrical workpiece which is rotated by a regulating wheel and supported by a work blade.(4) "Concrete sawing" means the cutting or slotting of materials such as concrete or asphalt where the sawing machine rides upon the surface being sawed.(5) "Contour grinding" means a grinding operation in which the grinding wheel or part follows a machine-generated contour.(6) "Cutting off" means the slicing or parting of any material or part.(7) "Cylindrical O.D. grinding" means the precision grinding of the outer surface of any cylindrical workpiece which is supported at one or both ends.Mich. Admin. Code R. 408.10102