CNC machining capability
Our machining capability combines CNC milling and CNC turning so projects can be matched to the most suitable process and machine.

Circle Line Engineering provides CNC machining in Auckland from our Ōtāhuhu workshop, with CNC milling, CNC turning and conventional turning capability. We support precision components, prototypes, one-off jobs and repeat production.
CNC milling, CNC turning and conventional turning under one roof at our Ōtāhuhu workshop in Auckland, from one-off parts to repeat production. Precision engineering since 1994.
Our machining capability combines CNC milling and CNC turning so projects can be matched to the most suitable process and machine.
For suitable work, machining tolerances can be held within 0.01 mm in house. Where tighter final tolerances are required, precision grinding can be arranged through specialist partners, along with heat treatment and other specialist processes.
Engineering design, tool making, keyway broaching, welding and engraving can complement machining where required.
For suitable work, we can hold machining tolerances within 0.01 mm in house and work accurately to drawings specified using GD&T. Where tighter final tolerances are required, precision grinding can be arranged through specialist partners.
Yes. Our engineering design service uses SolidWorks for 3D modelling and detailed drawings, so design support can be coordinated with CNC milling, CNC turning and prototyping.
Where a project needs work beyond our in-house machining, we can coordinate partner processes such as precision grinding, heat treatment and other specialist processing requirements.
Send drawings, dimensions, quantities and project requirements, and our team can review the requirements and confirm the most suitable manufacturing approach.
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