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Knuckle Joints

Knuckle Joints

Doughty Engineering

£55.9

An aluminium joint that provides articulation in a length of barrel. It is available as an assembly or as separate items and is ideal for use in special one off applications. Suitable for welding only and available in four sizes.

Doughty Engineering's own words, read from their page.

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.