Any electroplated CBN sharpening wheel for band saw grinding can be produced according to Your requirements.  Standard wheels parameters are:     Outside diameter    Bore diameter   127 mm / 5 inch    12,7 mm/ 1/2 inch     150 mm / 6 inch    20 mm / 25/32 inch     203 mm / 8 inch    32 mm/ 1 1/4 inch or 25,4 mm/ 1 inch    Different wheel profiles for all kind of wood and seasons are available:   10/30 - mostly used universal grinding wheel profile 9/29 - perfectly prepares band saws for winter time cutting, or cutting hard wood 13/29 - wheel profile which prepares band saws for soft wood cutting 4/32 - wheel profile which can prepare band saws for very frozen and very hard wood cutting.