Making tapped threads be dead-on square
It’s always nice to have you threads be straight, but on some occasions it’s really important.
It’s seems to me that one easy way to make sure that the threads are square is to do them on a drill press or lathe. Of course if running the motor, the threading happens way too fast and if turning the Chuck by hand, it’s hard to make the tap advance at the proper rate.
Any sage advice to be had on how to get perfectly square threads?