masinist

Masinist is a term used to refer to a machinist—an skilled tradesperson who uses machine tools to manufacture, modify, or repair metal parts. In modern usage, machinist is standard; masinist appears as a variant spelling in some languages or historical texts.

Typical duties include reading blueprints and tolerances, selecting and setting up machine tools such as lathes, milling machines, grinders, and CNC systems, and operating equipment. Machinists measure parts with precision tools like calipers, micrometers, and height gauges, inspect finished work for conformance, adjust tooling and speeds, and perform routine maintenance. They also document setups, cycle data, and quality checks.

Most machinists train through apprenticeships or vocational programs; many enter via community colleges or specialized schools. Advanced positions may require CNC programming knowledge and experience with CAD/CAM systems. Certifications from organizations such as the National Institute for Metalworking Skills (NIMS) or equivalent bodies in other countries help validate proficiency in turning, milling, and inspection.

Work settings include toolrooms, machine shops, and manufacturing plants. Safety is a central concern, with emphasis on personal protective equipment, machine guarding, and proper lockout/tagout procedures. Shifts can vary, and the work is typically physical and demands high levels of precision and concentration, sometimes under tight production deadlines.

Career paths typically run from apprentice to journeyman, with opportunities to specialize as CNC programmer, toolmaker, setter, or quality inspector. Employment prospects depend on demand in manufacturing and the pace of automation, but the core role of operating and tuning machine tools remains essential in metal fabrication.