A professional who moves metal objects, such as castings, billets, machine parts, sheet metal subassemblies, or arrowheads, against abrasive wheel of bench grinder to grind, smooth, or rough-finish objects to specifications. Responsibilities include:

• Clamps workpiece in workholder or jig, or holds it in hands, and feeds it against rotating grinding wheel to remove excess metal, scratches, or burs.
• Examines or measures workpiece for conformance to standards.
• Guides dressing tool across wheel to true surface.
• Replaces worn wheels, using wrench.
• May position workpiece in automatic feed mechanism.
• May select and mount abrasive wheels of different grit size to grinder to obtain specified finish on workpiece.
• May start pump and direct coolant flow against wheel.