A professional who tends hydraulic machine that cuts stone slabs for further processing. Responsibilities include:

• Reads work order to determine dimensions of stone to be cut.
• Sets end-stops according to dimensions of desired cut, measuring distance from blade with rule, or lays out dimensions on stone, using rule, straightedge, and chalk.
• Starts conveyor that moves stone over blade and against stops, or directs coworkers to push stone along roller conveyor into cutting position.
• Depresses pedal to raise turntable of conveyor containing stone slab, and rotates slab manually to align cutting mark with blades or to straighten stone against stops.
• Presses button to raise blade against stone and moves levers to lower wedges mounted on pressure head against stone.
• Turns lever or presses button to build up pressure in pressure head, observing gauge to determine when pressure is sufficient to cut stone.
• Pulls lever to force wedges against stone, splitting stone into specified dimensions.
• Lowers blade and end-stops, raises pressure head, and starts conveyor to remove stone.
• May tend machine that cuts granite blocks into paving-blocks (cobblestones) and be designated paving-block cutter i.