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Old 08-05-2016, 05:06 PM
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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: Classic ordered...finally!

The holder in the Classic 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 don't change gravers often and for that I like 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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