General Machinist

General Machinist Apprenticeship and Certification Act
Unrestricted Trade
Designated Red Seal Trade Trade Code 429A
NOC 7231


  • Read and interpret engineering drawings, blueprints, charts and tables or study sample parts to determine machining operation to be performed; plan best sequence of operations
  • Compute dimensions and tolerances and measure and lay out work pieces
  • 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
  • Fit and assemble machined metal parts and subassemblies using hand and power tools
  • Verify dimensions of products for accuracy and conformance to specifications using precision measuring instruments
  • May set up and program machine tools for use by machining tool operators

Personal Qualities

  • You can work indoors with noise, vibrations and other hazards that are common on the job
  • You enjoy working to close and exacting tolerances
  • You have the stamina to be on your feet for long periods of time
  • You like to learn new things on a consistent basis
  • You like working with computers
  • Review the Essential Skills profile for additional qualities required

Career Opportunities

  • General machinists are typically employed in manufacturing plants

Educational/Training Requirements

  • The minimum entry for apprenticeship is Grade 12
  • Completion of a 7,280 hour apprenticeship program is required
  • If you have completed 8,000 hours of on the job experience/training but have not completed the Apprenticeship Program you may be eligible to challenge the Certificate of Qualification.

Training Availability

Regional OYAP Training Durham College WhitbyCampus
Whitby, ON

Trade Related Programs Mechanical Technician – Tool and Die/CNC and/or
Mechanical Techiques – Precision Machining
Durham College – WhitbyCampus 1610 Champlain Avenue
Whitby ON L1N 6A7
905-721-3300 Apprenticeship Training Durham College – Whitby Campus
1610 Champlain Avenue
Whitby ON L1N 6A7 Fleming College 599 Brealey Drive
Peterborough, ON K9J 7B1
1-866-353-6464 –>