Crown Cryogenic High Speed Steel 3/4 Inch 19mm Spindle Roughing Gouge
This 3/4-Inch Cryogenic Roughing Out Gouge.
The ergonomically designed stained black ash handle fitted to this tool makes the finished chisel unbeatable. 12-1/2-Inch 317-mm Black Ash Handle.
It has long been understood that by subjecting metal tools to elevated temperatures and then rapidly cooling them, the properties of the metal can be altered. This happens because the crystal structure of the metal is altered to change the way the metal reacts when in use.
The two main crystals in tooling steel are the larger and softer austenite and the smaller, more stable martensite. Through heat treatment, we look to transform the austenite to marten site to produce steel with good wear characteristics and an amount of ductile properties.
When combined with a good quality heat treatment, the cryogenic process greatly enhances the austenic transformation. Also at these extreme temperature of -
The combined effect of the cryogenic processing is to produce a refined crystal structure in your hand tool that will give a lifetimes service by producing a blade that will retain its edge longer and give a superior ‘feel’ in use.