A professional who aligns dimension stone on bed of timbers preparatory to grinding, polishing, sawing, or chipping. Responsibilities include:

• Builds bed of timbers on flatcar or bed of machine.
• Signals overhead crane operator to lower stone and guides stone onto timber bed, aligning stone with arm of polishing machine, surfacing machine, or saw.
• Determines when stone is level, using straightedge and spirit level.
• Signals crane operator to lift stone, or pries up stone with crowbar and levels stone by inserting or hammering wedges and blocks between stone and timbers.
• May assist crane operator to position grinding or polishing wheel on stone.
• May measure and mark blocks for cutting, using rule, straightedge, and crayon.
• May spread abrasive material over surface of stone.
• May shovel abrasive material from mill into storage hopper after grinding and polishing processes.