Crown Spindle Gouges - Cryogenic Steel Turning Tools

Crown Spindle Gouges - Cryogenic Steel Turning Tools

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Spindle gouges are used along the edge of the grain. They are typified as being a standard length chisel as they generally don't have to reach too far from the tool rest whilst turning (compared to bowl gouges) and provide close cutting control as a result. The edge is often ground at a 45 degree angle and generally have more of a pointed tip ground so that finer smaller turning is possible. Blade length = 185mm Handle length = 254mm About Crown Cryogenic Steel The Crown Cryogenic range are high quality turning tools with a difference. Using cryogenically treated tools means that now you can turn more and sharpen less often. The tools are made from M2 Steel that are heat treated normally then taken down to temperatures as low as -185°C which changes the molecular structure of the steel. The two main crystals in tooling steel are the larger and softer austenite and the smaller, more stable martensite.  Normal heat treatment seeks to transform the austenite to martensite to produce steel with good wear characteristics and an amount of ductile properties. The cryogenic process greatly enhances and accelerates the austenic transformation.  Another benefit is that at these extreme temperatures, fine ‘eta’ carbides are formed within the carbon structure.  Growing very slowly and only at these very low temperatures, ‘eta’ carbides are extremely small and act as a ‘filler’ between the other crystals in the metal. The combined effect of heat treatment and cryogenic processing is to produce a refined crystal structure in your hand tool that will give a lifetime’s service by producing a blade that will retain its edge longer and give a superior ‘feel’ in use. All Crown Cryogenic Turning Tools are finished with beautiful black Ash handles.

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