12-07-2014, 05:32 PM
John, I'd be tempted to buy one of the many R8 threaded adaptors available for boring heads, and just make a plate with the appropriate PCD holes drilled in it
http://www.rdgtools.co.uk/acatalog/BORIN...HANKS.html
http://www.rdgtools.co.uk/acatalog/BORIN...HANKS.html
Andrew Mawson, proud to be a member of MetalworkingFun Forum since Oct 2013.