Measure dimensions of finished workpieces to ensure conformance to specifications, using precision measuring instruments, templates, and fixtures.

Mount, install, align, and secure tools, attachments, fixtures, and workpieces on machines, using hand tools and precision measuring instruments.

Stop machines to remove finished workpieces or to change tooling, setup, or workpiece placement, according to required machining sequences.

Check to ensure that workpieces are properly lubricated and cooled during machine operation.

Insert control instructions into machine control units to start operation.

Review program specifications or blueprints to determine and set machine operations and sequencing, finished workpiece dimensions, or numerical control sequences.

Listen to machines during operation to detect sounds such as those made by dull cutting tools or excessive vibration and adjust machines to compensate for problems.

Remove and replace dull cutting tools.

Monitor machine operation and control panel displays and compare readings to specifications to detect malfunctions.

Modify cutting programs to account for problems encountered during operation and save modified programs.