
Optical Goods Maker/Repairer [cameras, lenses]
Tool and Die Makers [Tool and Die Maker Apprentices]
Machinists [Machinist Apprentice]
Boilermakers
Precision Grinders/Tool Sharpeners
Patternmakers and Modelmakers, Metal
Layout Workers [figuring the best cuts out of a piece of something]
Engravers, Metal
Watchmaker