There was a delay in delivery of the grinding wheel as it was out of stock and had to be delivered by the supplier. However, my machine manual contained the wrong size for the spindle diameter resulting in the wrong bore arriving. This was totally my fault for not checking by removing the existing wheel and measuring it. A quick and informative phone call to Toolpost resulted in a replacement set of bushes being posted out and arriving next day. Equipped with the correct fitting and on the grinder, the ruby wheel sharpened my tools quickly and easily to give a lovely smooth cut. Excellent product and very good backup service. Will be happy to use Toolpost again.