By using various bushing tools with your pneumatic hammer, it is possible to rough
out, finish carve and texture many types of stone. This valuable stoneworking technique
not only saves time, but also produces a wider variety of surface finishes than
is possible with conventional hand tools.
Some important things to remember:
Do not hold onto the bushing chisel. Hold the pneumatic tool perpendicular to the
stone so the chisel moves freely, bouncing and spinning over the surface in a
random pattern (called "dancing").
The 4-point chisel (above left) is ideal for roughing out your work and will leave a
course texture. The 9-point chisel (center above) removes less material but leaves a
finer surface. The cup chisel (above right) will not dig and is excellent for curved
areas; use it to achieve a smoother texture prior to final finishing.