Make tools, fittings, and small metal pieces used in other products.
Fabricates brick and tile samples and tests samples for conformance to strength specifications: Starts machines that grind, sift, and mix clay. Molds brick and tile samples, using mold, hand rammer, and trowel. Places models in kiln burner and turns switches or valves to heat kiln to specified temperature. Removes samples from kiln and places samples on testing machine supports. Turns handwheel to force bearing plate against samples. Reads gauge to obtain transverse breaking load in pounds per square inch, and records data. Inspects products for size, cracks, and other imperfections, using hammer and notched rule. May test products for strength, using testing machine.