At 11:48 05/06/00 -0700, Jim wrote: >An arbor of slitter blades >cost around >$50,000 and the precision is in maintaining a runout of less than >50 micro-inc >hes. OUCH! No wonder it's such expensive stuff :-) Out of curiosity, how often did these have to be changed? Graeme Jaye gjaye@retemail.es Personal-CD - Affordable Audio Restoration http://www.personal-cd.com