I guess it is 12 DP but will check when I go out to the shop in the morning. Just had a thought that it might be Module as the hole for the bearings it should run in is 40mm. Will let you know anyway.
Thank you the work proceeds well. I am working on the eccentric bearing that will carry to worm at the moment. Seems to fit the table perfectly without shake now I just have to bore it and make up the mounting for the division plates. Should be a good table when it is all fixed.