What is countersunk drill, flat head drill?
Flat drill: literally, a drill without head angles, somewhat similar to a milling cutterBut at the time of processing
The traditional processing method is to use the normal size and low hole drill out in shallow hole with a suitable flat drill out above or to the appropriate size hole cutter width! Now progress to this two processing into a processing!.
Countersunk drill: it is a well formed drill bit that is basically used for machining countersunk headsA drill bit used to hide six square screws
