[Jewelry making - Article 00066] - Re: [Orchid] Durston Guillotine Shear

[James Binnion]

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    All shears round the top edge and leave a burr on the bottom. The
    question is how much. Many shears are set up for steel cutting which
    means that the gap between the blades is slightly wider than what
    you want for non-ferrous metals.When I had new blades put in my foot
    shear the tech set the gap at 0.002 inch which leaves very little
    bur and minimal rounding. As the blades wear the rounding and burr
    will get more pronounced and keeping an eye on this will tell you
    when it is time to get them sharpened. While the adjustment of the
    gap is fairly easy you can ruin a set of blades in one cut if they
    actually touch each other there must be a gap between them so if you
    decide to adjust the gap yourself be warned and take care, I ruined
    a set of blades on my first bench shear on the first cut by setting
    the gap too close and they touched. A set of new blades for my Pexto
     36" foot shear cost $750 so I decided to pay the tech the $100 to
    install them properly. -- Jim Binnion 

James Binnion Metal Arts
Phone (360) 756-6550
Toll Free (877) 408 7287
Fax (360) 756-2160
http://www.mokume-gane.com
jbin AT mokume-gane.com
Member of the Better Business Bureau

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