District Tooling in Harlow are an unusual engineering company. They excel in the one off parts. Prototypes that their clients will then use for production parts. The difficult thing is that a lot of their parts are subject to NDAs so we can't actually show you what they do! But we were able to do a video with Stuart who showed us what true craftsmen they are. The video is coming soon. For the meantime here is a picture of one of their designs. Ok, it might look that great but the part is manufactured in Acetal and only 10mm by 5mm – machine that if you can.