【转帖】counterbore standard
 

counterbore standard
hey all,
im converting a drawing from 2d to 3d. i was wondering if anyone could tell me what a pg7 counterbore was. its wrirtten on the drawing and i'm not sure what size of counterbore it is referring to.
cheers
gareth
panzer grade (german thread spec)?
thanks for your help dgowans.