Shape mechanical components by material removal using hand tools in engineering construction

Business Sectors (Suites): Installing Plant and Systems - Mechanical
Developed by: ECITB
Approved on: 10 Dec 2020


This standard is about shaping mechanical components by material removal using hand tools in engineering construction.

You will need to be able to shape mechanical components using the appropriate hand tools and techniques and check that the specification has been met whilst adhering to health, safety and environmental legislation, regulations and safe working practices.
In the context of this standard, your responsibility is to interpret and work within given specifications, selecting techniques and making variations to achieve the best possible result.  In some cases, you may still be expected to refer to others for final authorisation, even though you remain responsible for identifying and implementing decisions. 

Who this standard is for
This standard is for mechanical fitters. 

Performance criteria

You must be able to:

  1. work safely at all times, complying with health, safety, environmental and other relevant legislation, regulations, guidelines and local rules or procedures
  2. ensure that the work environment, material, tools and equipment are suitably prepared for the work activities to be undertaken 
  3. obtain the required materials and check the dimensions, quantity and quality
  4. follow the relevant engineering drawings, related specifications and quality standards 
  5. shape the materials using appropriate hand tools and techniques
  6. identify and rectify mechanical defects, where appropriate
  7. check that the completed mechanical component meets the required specification then follow the required handover procedures
  8. reinstate the work area
  9. deal promptly and effectively with problems within your control and report those that can and those that cannot be solved

Knowledge and Understanding

You need to know and understand:

  1. relevant legislative, regulatory and local requirements or procedures and safe working practices including your responsibilities with regard to reporting lines and procedures 
  2. preparation and reinstatement requirements in respect of the work area, tools, material, and equipment and the possible consequences of incorrect actions in these areas
  3. relevant engineering drawings, related specifications and quality standards
  4. how to check compliance with specification for:

    • material to be shaped
    • completed mechanical components
  5. methods and techniques of shaping by material removal using hand tools: 

    • which tools to use and when
    • how to sequence the stages of work
    • how to modify the way of working to meet particular needs
  6. the types of defects that may be found and what to do if any are found

  7. tool and equipment control:  the correct use of relevant tools and equipment and your individual responsibility for the use, care and security of those you use


Work environment

**Typical work environments could include:

  • engineering construction sites
  • controlled operations
  • offshore installations
  • maintenance sites
  • nuclear sites
  • repair sites

Work environments may be open or restricted spaces: 

  • at height
  • confined spaces
  • control rooms
  • controlled operational and offshore installations
  • designated work areas
  • explosive atmospheres
  • existing plants and structures
  • fabrication workshops

  • in plant rooms

  • inside structures, system and plant
  • on access structures (scaffold)
  • on open structures

  • onshore and offshore installations

  • shafts
  • shipyards
  • tunnels

     Reinstate the work area

This term could include:

  • returning the work area to a safe condition
  • removing barriers
  • sweeping up
  • correctly disposing of waste materials
  • storing re-usable materials, consumables and equipment in accordance with appropriate procedures
  • completing all necessary documentation

Scope Performance

Scope Knowledge





Links To Other NOS

External Links

Version Number


Indicative Review Date

10 Dec 2024





Originating Organisation


Original URN


Relevant Occupations

Mechanical Fitter

SOC Code



Shape by removal; engineering drawings; specifications; fabricating steel structures; plating; hand and powered tools; engineering; material removal; unpowered hand tools; construction; mechanical fitting; installing mechanical components