Bead & Parting Tools - Cryogenic Steel

  • Bead & Parting Tools - Cryogenic Steel

    These tools have symmetrical bevels formed on a body having a square cross section. They are widely used for forming tenons with a peeling cut and rolling beads on a spindle. This name comes from the motion of the tool while shaping a bead. You can use the tool to cut a pair of convex surfaces back to back, which constitutes a bead if the spacing, curvature, and so forth are correct.  

    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.

    6mm Handled
    247-AKW
    $89.00 (inc GST)
    10mm Handled
    247-KW
    $95.00 (inc GST)
     
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