A professional who operates machines to cut and grind refractory clay blocks to specified dimensions. Responsibilities include:

• Measures and scribes cutting lines on block, using ruler and scribe.
• Lifts block onto bed on cutoff grinder and secures block to bed with holding attachment, using handtools.
• Turns handwheels to position block under cutting blade.
• Starts machines that cut block along scribed lines and grind it to specified dimensions.
• Shapes unmachinable blocks, using chisels, hammers, and hand stones.