Richard, thanks for the great info.I have in fact just made an online payment for the basic set for £50. I read the web site info after and it says each cutter is good for about 6 to 8 holes ( in porcelain i guess ) or more if you use water as you drill.I thought that sounded quite a low figure! I've lost the page now,so did I mis-read that? I can't argue with the price though.very reasonable.
As for your point about treating them as a consumable, I don't know if i would feel funny about adding it to an invoice.I've only just started up on my own, having done the NVQ2, and so havent got many jobs behind me yet, wouldn't a customer expect hole cutters (and all tools) to be something I would have to provide? or at least one could just incorporate the cost into initial quote and keep them for next job? I'm finding it very difficult at mo, i've been undercut on three jobs in a row now,so if I get the chance to make a bit of money back i'm going to have to!
regards, nelson