developed and patented his miniature power impact graver. The
tool was originally designed for his fine line banknote style
engraving work at very low air pressures. However, the power the tool
provides may be adjusted with the length of stroke adjustment.
With the adjustment working in a manner similar to a focusing ring on
a camera and using greater air pressures the graver will move
effortlessly though deep, bright cut engraving, background removal or
stone setting. The mechanism makes one handpiece as versatile as
a variety of sized impacting gravers.
This graver is called
an AirGraver and is