How to become a CNC machinist in the UK

6 minute read · 2026-08-28

CNC machining is one of the better kept secrets of UK manufacturing. It takes people on with no experience as machine operators, it trains them, and a competent setter or programmer is paid well and is genuinely difficult to replace. If you like precision, problem solving and working with your hands without being outdoors in the rain, it is worth a look.

What machinists actually do

The job has three levels and they are worth separating. An operator loads and unloads parts, presses cycle start, deburrs, checks parts against a simple gauge and keeps the machine fed. A setter operator sets the job up: fitting work holding, loading and offsetting tools, proving out the first component, adjusting for wear and correcting problems when a tool breaks at three in the morning. A programmer writes or edits the code, often in CAM software such as Mastercam or Fusion, and decides how a part will be cut in the first place.

Underneath all of that sit the fundamentals: reading engineering drawings, understanding tolerances and geometric dimensioning, using micrometers, verniers, bore gauges and height gauges, and knowing when to send a part to the coordinate measuring machine. Machines split broadly into turning, on lathes, and milling, on machining centres, with controls such as Fanuc, Heidenhain and Siemens.

How to qualify

The strongest route is an apprenticeship: the Engineering Operative standard at Level 2 or the Machining Technician standard at Level 3, typically three to four years, paid, with college release and funded through the apprenticeship levy. Larger engineering firms and aerospace suppliers run intakes every year, and adults are eligible as well as sixteen year olds.

If you have missed that boat, the other route is the one most people take. Get in as a machine operator, usually on nights or through an agency, and learn from the setter on your section while studying part time. A Level 2 or Level 3 Diploma in machining or performing engineering operations at your local college, often one evening or one day a week, is commonly £500 to £1,500 for adult learners, and some are funded depending on your circumstances and prior qualifications. Short CAM software courses run from a few hundred pounds upwards. Useful extras are abrasive wheels, counterbalance forklift, overhead crane and slinging, and quality awareness for aerospace or medical work.

Realistic pay

Machine operators are commonly advertised at around £12 to £13.50 an hour on days, with a night or continental shift premium on top that makes a substantial difference to the annual figure. Setter operators are typically advertised at £15 to £19 an hour, and experienced setter programmers at £40,000 to £50,000, higher in aerospace, motorsport, oil and gas and toolmaking, and in areas where firms compete for a small pool of skilled people. Overtime at premium rates is usually available, and many subcontract shops rely on it.

The shifts and the physical realities

Manufacturing runs machines as close to continuously as it can, so expect double days alternating six to two and two to ten, permanent nights, or twelve hour continental patterns rotating days and nights. Nights suit some people and wreck others, and it is worth trying before committing.

The environment is loud enough to need hearing protection, and coolant mist gets on your skin and clothing, which is why dermatitis is the trade's most common complaint and why barrier cream matters. You stand on concrete for the whole shift, swarf cuts hands, and on nights you may be the only person responsible for several machines. There is also real pressure attached to expensive material: scrapping a part that has already had twenty hours of machining in it is a bad night, and every experienced machinist has had one.

Getting the first job and moving up

Apply to small and medium subcontract engineering firms on industrial estates near you, not only the household names, because that is where most of the vacancies are and where you will learn faster. Agencies fill a lot of operator roles, and an operator contract is a legitimate way in. Say plainly that you will work nights, since that is what most firms are short of, and mention any hands on background at all, whether that is car mechanics, model making or a workshop at college. Our guide to a CV with no experience shows how to present that.

From setter the routes are programmer, CAM engineer, quality inspector, production engineer, toolmaker or cell leader, and machining knowledge is valued in technical sales and estimating too. If you would rather stay in industry but not on a machine, our guide to warehouse and forklift work covers the logistics side of the same sites.

Next step: search current engineering and manufacturing vacancies and look for employers offering funded apprenticeships to adult starters.