A professional who sets up and operates machine with single or multiple grinding wheels to shape building or monumental stone into various designs. Responsibilities include:

• Levels and aligns stone on car or machine bed according to design specified for stone, using crowbar, wedges, square, and spirit level.
• Clamps stone to backstop, securing stone for grinding.
• Selects template, according to contour of design, and bolts template into position on machine to guide grinding wheel over stone.
• Turns valve to spray water over wheels and stone.
• Moves levers to lower grinding wheel against stone and start machine that moves rotating wheel back and forth over stone, following outline of template.
• Observes ammeter to determine resistance against wheel and moves lever to increase or decrease pressure on wheel.
• Compares stone with template or scans design marked on stone to determine conformance to specifications.
• Dresses surface of worn grinding wheels by holding dressing tool against rotating wheel.
• May rough out contour of stone preparatory to finishing by machine, using chisel, hammer, and pneumatic cutting tools.
• May operate machine without template to grind flat surface on stone.
• May operate machine to grind joints or grooves or cut and shape stone moldings, fluted columns, panels, and decorative designs in building or monumental stones.