On Thu, 12 Nov 2009 12:49:30 -0700, "YES NOPE9" said: > #1 What pressure range do they operate at ? 40,000 to 90,000 psi > #2 Does the water stream contain abrasives ? Yes, the water is mainly a carrier and for cooling. > #3 What kind of material is used for the nozzle ? Sintered boride. Cheerful regards, Bob -- http://www.fastmail.fm - mmm... Fastmail... -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist