They are simple and you can make one even if you don,t have a workshop and a range of tools, well thats at least what my plan is but will it work or will it just turn out to be a waste of time...... See if it works here http://www.youtube.com/watch?v=EorMrpM6q9Q All parts used in this video can be viewed on my website here at this page. http://www.colinfurze.com/no-weld-jet.html Check my other pages for news and pictures Twitter https://twitter.com/colin_furze Instagram https://www.insta