John Hewett Precision Engineering

Bumble Cottage 22 The Street, North Lopham, Diss, IP22 2NB

About

John Hewett Precision Engineering Ltd, a UK-based contract manufacturer established in 2015, specialises in micro machining and the production of small, high-tolerance parts, excelling in custom builds and one-off high-tech engineering products with fast turnaround times for small batch, high tolerance work. Their comprehensive capabilities include CNC machining, turning, micro manufacturing, rapid prototyping, wire erosion, laser and water jet cutting, sheet metal fabrication, welding, and various finishing processes like bead blasting, spray painting, polishing, and electroplating, utilising advanced equipment such as a Hardinge Hlvh Super Precision Lathe and new CNC milling machinery. Demonstrating their micro machining expertise with capabilities down to 0.06mm micro drilling and 80-micron holes, the company primarily serves the medical device sector, alongside bespoke projects for the aviation heritage market.

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John Hewett Precision Engineering Ltd is a UK-based contract manufacturer established in early 2015, specialising in micro machining and the production of small, high-tolerance parts. Founded by John Hewett, who brings extensive experience from high-tech engineering roles, the company excels in creating completely custom builds and one-off high-tech engineering products with fast turnaround times, catering to small batch, high tolerance work.

Their comprehensive manufacturing capabilities include CNC machining, turning, micro manufacturing, SLA and rapid prototyping, wire erosion and die sinking, laser and water jet cutting, and sheet metal fabrication. They also offer Tig and Mig welding, bead blasting, spray painting, polishing, and electroplating finishes, utilising equipment such as a Hardinge Hlvh Super Precision Lathe and new CNC milling machinery. The company has a particular focus on serving the medical device sector.

The company's expertise in micro machining is demonstrated by their ability to perform micro drilling down to 0.06mm and micro milling, with examples including a micro-machined car measuring just 2.5mm wide and components with features as small as 80-micron holes. They also showcase bespoke capabilities through projects like a detailed Fiat 500 model crafted from solid brass and a Spitfire item made from original aluminium sourced from a Battle of Britain aircraft, targeting the aviation heritage market.

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CNC capability5

Sub-process
,
Named machine brands
Tolerance (typical)
Tolerance (tight)
Micro-machining

Materials & sectors2

Materials
Industries served
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Welding & fabrication2

Fabrication offered
Fabrication sub-categories

Services & production2

DFM support
In-house finishing
30 of 41 facets not yet verified — show which

CNC capability: Specialist categories · Tier-one builder presence · CAM software · Aerospace-grade CAM · CAD software · In-house design · MOQ (minimum batch) · Lead time (weeks)

Certifications & approvals: ISO 9001 · ISO 14001 · AS9100 · ISO 13485 · IATF 16949 · NADCAP · Primes supplied · ITAR registered

Welding & fabrication: Welding automation · Welding materials · Coded welding (any) · EN 1090 EXC level

Quality & traceability: NDT methods · Part marking · Process traceability · CofC offered · Cleanroom assembly · 3D scanning · Industrial CT · In-house toolroom · FAIR capability (AS9102)

Services & production: Repeat orders (Kanban / VMI)