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pre-sharpened Carbalt graver with this point is included with an AirGraver handpiece.
Benefits of the Point Geometry
The five photographs illustrate the problem of heel drag with the traditional graver points, showing how the
uniform point eliminates it. The photographs were taken through a scope.
The cuts are on a steel practice plate. Click
the photos to enlarge
above is an overall shot of the plate. The two gravers that were used are
lying on the plate rotated so that the heels of the gravers are visiable. The upper row of cuts
made using the uniform point, and the lower row were
made with a traditional point.
two photos below
are close-ups of the above plate traditional point cuts. Click
photos to enlarge
are close-ups of the above plate
photos for more detail
The heel relieving graver can go deeper into the metal than a traditional
graver point using the same power level. The heel on the traditional
graver point is actually giving more resistance as it is driven through
the metal. This is especially evident around corners like those shown in
the sample plate.
uniform parallel geometry has a shorter heel because of the secondary
relief facets, and allows the edge to cut through the metal clean
and without drag.
The Uniform Parallel
similar to having two flat graver points joined together to form a V.
While engraving, lean it to one side or the other and it will cut wide
like a flat point. This makes the point versatile and allows a it to
vary the width of the cut easily.
Click to Enlarge
Lindsay Graver Sharpening System uses templates to reproduce various points easily and accurately.
Fixture comes with the Universal (116 degree) template
graver sharpening products
INSTRUCTIONS FOR USING SHARPENER