Can you recommend a brand of diamond holesaw drill bits?

[WhoStoleMyTiddyOggy]

I want to drill a load of crockery and I don't want the holesaw bits to wear out after only 1 or 2 drillings. There are sets on Amazon for only a tenner but I want a set that will last. Any recommendations?

Sorry I thought I answered this last night.

Erbauer are mid range pro tools but you'll pay £15-£25 for each 6-10mm bit. They will last well though if used with plenty of coolant.