The Record Power WG250 Whetstone Grinder with a range of high-quality jigs and accessories is essential for many woodworkers and is also an extremely useful tool for general household tasks, such as the sharpening of knives, gardening tools and many other items. The WG250 is the result of research carried out with a number of renowned turners and woodworkers who looked at the other machines on the market and advised what they thought was needed to improve on what was available. There are a number of features that make this machine stand out from the competition - some small but significant details as well as some major points of difference to most of its rivals. It has a Friable stone is specially designed so that as the abrasive wears, heat increases reducing adhesion so that the worn abrasive minerals come away to reveal fresh and effective new crystals. With variable speeds from 90-150/Min. The stone wears the diameter reduces. On most machines you cannot do anything about this, but