Tried to look on line for any regulations for conforming driverheads but couldn't find much . I am looking for specific weights , size , face thickness , all the details that make a conforming head .
Thanks in advance
Mark
A qualified engineer and a hack saw.
Seriously if you are looking to get into the business your going to have to find a manufacturer that will help you. I could be wrong but I think only the big names do their own stuff. Everyone else is outsourcing. Find them and I am sure they will work with you on all that.