Machinists perform some or all of the following duties:
A. Maintain, repair and calibrate precision measuring instruments such as dial indicators, fixed gauges, height gauges and other measuring devices
B. Report deviations from specifications and tolerances to supervisor
C. Maintain inspection records and complete inspection reports.
D. Read and interpret engineering drawings, blueprints, charts and tables or study sample parts to determine machining operation to be performed, and plan best sequence of operations
E. Compute dimensions and tolerances and measure and lay out work pieces
F. Set up, operate and maintain a variety of machine tools including computer numerically controlled (CNC) tools to perform precision, non-repetitive machining operations such as sawing, turning, milling, boring, planing, drilling, precision grinding and other operations
G. Fit and assemble machined metal parts and subassemblies using hand and power tools
H. Verify dimensions of products for accuracy and conformance to specifications using precision measuring instruments
I. May set up and program machine tools for use by machining tool operators.
Machining and tooling inspectors perform some or all of the following duties:
A. Verify dimensions of machined parts or tooling using micrometers, verniers, callipers, height gauges, optical comparators, co-ordinate measuring machines (CMM) or other specialized measuring instruments