CNC Single Point Diamond Turning Setter/Operator
G&H Ilminster, Somerset
Full-Time, Permanent | Monday to Friday
Rotational shift work after training (with a 20% shift premium)
Are you experienced in CNC turning?
Looking for a role in a cutting-edge, world-class optics company?
If so, we want to hear from you!
We are seeking a highly skilled CNC Single Point Diamond Turning (SPDT) Operator to manufacture ultra-precision components to extremely tight tolerances and surface finish requirements. The successful candidate will be responsible for setting up, and operating CNC diamond turning machines to produce high-quality optical and precision-engineered parts.
About Us
G&H is a global leader in optical design, testing, and manufacturing. As experts in the technology of light, we provide high-performance optical systems, assemblies, and components for a wide range of demanding applications. In our Diamond Turning department, we produce custom lenses for imaging, focusing, collimation, and illumination. Our work involves crafting spherical, semi-spherical, and aspheric lenses using state-of-the-art 5-axis grinding and polishing machines.
As a CNC Diamond Turning Operator, you will:
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Interpret ultra-precision engineering drawings, CAD data, and surface finish specifications
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Select and handle diamond tooling with extreme care to maintain tool integrity
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Achieve nanometre-level surface finishes and sub-micron tolerances
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Conduct first-off, in-process, and final inspections using precision metrology equipment
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Monitor and control environmental conditions (temperature, vibration, cleanliness)
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Adjust machine parameters to optimise surface quality, accuracy, and cycle times
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Perform routine maintenance, calibration checks, and fault diagnosis
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Work closely with engineering, metrology, and quality teams to support continuous improvement
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Maintain accurate production and inspection records
The ideal candidate will have:
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Proven experience operating CNC Single Point Diamond Turning machines; or experience in other CNC turning
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CNC programming skills, including G-code and/or machine-specific controls (desirable, but not essential)
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Experience working with ultra-precision materials (e.g. aluminium alloys, copper, nickel-phosphorus, optical polymers)
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Exceptional understanding of tolerances, form accuracy, and surface roughness
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High level of attention to detail and methodical working approach
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Ability to work independently in a clean, controlled environment
What We Offer
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Competitive salary with a 20% uplift for rotating shift work.
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Generous overtime pay: 1.5x after 39 hours and 2x on Sundays and Bank Holidays.
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25 days of holiday plus Bank Holidays.
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Pension contributions: Company pays 6%.
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Company bonus scheme.
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Health Cash Plan to cover medical expenses.
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£500 referral bonus for recommending friends (terms apply).
Ready to Join a Leader in Optical Technology? Take your career to the next level with G&H. Apply today and be part of a team that’s shaping the future of optics!
