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Crown CRYO Double End Bowl Gouges

Each double end bowl gouge has two grinds. One end is fingernail grind. And the other end is traditional straight grind, making this tool a very versatile two in one tool.

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 -301F (-185C), 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 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.

Customer Reviews

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D
D.H.
What a great bowl gouge

Bought it a few weeks ago. What a great tool! It cuts smoothly and stays sharp for quite a while. The 40/40 grind works very well for all types of cuts. I recommend taking the heel down a bit for ease of turning corners without burnishing because of the back of the bevel.
I love the fact I can switch ends to make a smooth bottom finishing cut with the fingernail grind. I'll use this one till it's a nub and buy another! This is a little bowl my son made from birch.