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Re: [Orchid] Chicago Pneumatic Hammer
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Kenneth Ferrell Thursday, May 27, 2004
   
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    I use my Gravermeister to set with, I never did learn to engrave
    with it, But it is excellent for Bead raising and cutting seats as
    well as Prong or Bezel setting, mine is an older unit with 800 to
    1200 strokes per minute, (the newer ones operate at up to 2400
    strokes per minute). The pressure, or force of the hammer is
    controlled by a foot pedal and the speed by a lever on the side. I
    have no problems setting Opals in White Palladium gold and with the
    available hand pieces; I have two a medium quick change and a Bullino
    style quick change, that I use the most. I wish I had waited for the
    Gravermaster. It is a smaller unit, but requires a separate
    compressor, Most shops have one any way for a sand blaster or wax
    injector or other air powered devices. The quick change is great, I
    keep about 20 adaptors with a few gravers and a lot of beading and
    stippling tools, with the Gravermaster though it is my understanding
    that you can purchase rotary hand pieces as well, a very nice
    advantage. They aren't cheap or inexpensive, mine is over 15 years
    old and still works great it has had quite a bit of use. (and I have
    seen what they can do in the hands of a skilled engraver). You can
    develop quite a bit of strength if necessary, more than enough to
    move Low karat gold channels or .950 Platinum, I haven't tried any
    cobalt alloy but I would imagine that they will develop as much power
    as necessary. 

    Usual disclaimer, no connection with the company just a satisfied
    user of a good tool 

Kenneth Ferrell
www.shadras.com




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