162mm raptor lens board hole size

[jj golden]

i want to order a lens board for my raptor lens, what size would the hole be, a copal 1? my camera is 6x6 size board, toyo.. thanks

[mikec]

not much to go on . measure it and check the diameter against

http://www.skgrimes.com/lensmount/shutmt/index.htm

[Jack Flesher]

I had one a while back and needed to enlarge the hole in a #1 Tech board slightly, maybe 2mm or so. I used a 1" cylindrical abrasive wheel in a power drill and it worked great, coarse to start, fine to finish. Just go slow to keep the hole round, and de-burr the edges when done.