Crown CRYO Roughing Gouge Tang Tool

£85.50 *

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roughing gouge:


Length: 310 mm

1 1/4" and 3/4" roughing gouge. CROWN CRYO.  These tang tools are specially fixed into a 16 mm round bar. A special metal liquid is used to set them firmly in place. They can then be used in the red quick release head or 16.5 mm grub screw 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 martensite 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 austenitic transformation.  Also at these extreme temperatures 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.


Steel: Cryo
Shaft Diameter: 16 mm
Blade Length: 175 mm
Total Length: 310 mm
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Customer evaluation for "Crown CRYO Roughing Gouge Tang Tool"
19 Mar 2021

Longer handles improve working - excellent crown gouge

Using the Crown spindle roughing gouge in the converted tang form lets you have a much longer handle. This makes it much easier to hold pressed against your hip for control - ideal when doing a lot of large spindle work. The Crown tools use good hard steel and cut beautifully.

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