These are our own brand of white aluminium oxide vitrified grinding wheels. They are a general purpose wheel suitable for sharpening high speed steel (HSS) tools and grinding most steels. They offer cool and burn free cutting and excellent wheel life all at a very competitive price. | | All with 31.75mm bore, supplied with 1″, 7/8″, 3/4″, 5/8″ and 1/2″ bore nylon bushes. | | All York grinding wheels are supplied in a unique storage box, which helps prevent chipping and other accidental damage. Spare cases available. | | Type 1: Straight grinding wheels. | | Note: Truing recommended before first use. | |