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Old 06-13-2016, 10:41 AM
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Steve Lindsay Steve Lindsay is offline
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Join Date: Feb 2006
Location: Kearney, NE
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Default Re: Seeking advice on choosing an engraving system for stone setting work

You're welcome, Chathu. Another difference of the Artisan and Classic is that the Classic doesn't need collets.

The holder in the Classic AirGraver nose is a .133" diameter hole. This
is the size of a 3/32" square measured across the corners. Therefore
3/32" square gravers work as will any shank you can fit into a .133"
(3.38mm) diameter hole. If the tang of the gravers you are using are
larger than this you will need to grind the shanks to fit. Within the
front end of the tool hole is an oring that is used with the rapid
change that works best with the 3/32" square.

Below are five methods in the manual on page 5 about changing gravers in
the Classic. If switching a lot, I use method #1 (no collects needed) or
method 2 is also quick. For work on the knives I didn't change gravers
very often and so I would use method 3.

1: Slip a graver in and out of the tool hole. Gravers are held from
rotating or falling out of the tool hole because of the oring, yet they
may be pulled out or pushed in easily. This works best with 3/32" square
shank gravers. To prepare the tool, insert a 3/32" square graver and
leave the setscrew slightly backed off from the surface of the graver.
The screw acts as an index in this way and the friction of the O-ring in
the front of the tool hole prevents the graver from falling out. Once
the setscrew is set, it does not need to be adjusted to change gravers.

2. Utilizes a thumb screw for a more secure grip. This will work with
any shank graver (round or square) under .133" in size.

Remove the setscrew and use the knurled thumbscrew in its place. The
graver can be tightened down for a more secure grip than #1.

3. The third way to use the tool holder is with a set screw and wrench.
This will provide the most secure hold. It will work with any shank
graver (round or square) under .133" in size.

4. The fourth method is to remove the setscrew or thumb screw from the
AirGraver's nose completely, and just slip the 3/32" square graver
shanks in/out. It is similar to #1", but with the set screw completely
removed. The rubber o-ring is then all that is used to hold the graver
in the tool hole.

5. Last method is using the quick change extensions for the Classic.
They provide extra length for large hands or if wanting to get more use
from a short graver.
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