Compute unspecified dimensions and machine settings, using knowledge of metal properties and shop mathematics.

Start lathe or turning machines and observe operations to ensure that specifications are met.

Turn valve handles to direct the flow of coolant onto work areas or to coat disks with spinning compounds.

Lift metal stock or workpieces manually or using hoists, and position and secure them in machines, using fasteners and hand tools.

Replace worn tools, and sharpen dull cutting tools and dies, using bench grinders or cutter-grinding machines.

Refill, change, and monitor the level of fluids, such as oil and coolant, in machines.

Install holding fixtures, cams, gears, and stops to control stock and tool movement, using hand tools, power tools, and measuring instruments.

Study blueprints, layouts or charts, and job orders for information on specifications and tooling instructions, and to determine material requirements and operational sequences.

Select cutting tools and tooling instructions, according to written specifications or knowledge of metal properties and shop mathematics.

Position, secure, and align cutting tools in toolholders on machines, using hand tools, and verify their positions with measuring instruments.

Mount attachments, such as relieving or tracing attachments, to perform operations, such as duplicating contours of templates or trimming workpieces.

Move controls to set cutting speeds and depths and feed rates, and to position tools in relation to workpieces.

Crank machines through cycles, stopping to adjust tool positions and machine controls to ensure specified timing, clearances, and tolerances.

Inspect sample workpieces to verify conformance with specifications, using instruments such as gauges, micrometers, and dial indicators.

Adjust machine controls and change tool settings to keep dimensions within specified tolerances.