Taper tap
Intermediate tap
Plug tap
Bottoming tap
2 to 3
4 to 6
8 to 10
11 to 12
easy movement of a sliding part of a machine
cooling the machine
cooling the cutting tool only
cooling the job and the cutting tool
6 to 15 mm
8 to 20 mm
10 to 15 mm
10 to 25 mm
less or no lip clearance angle
more clearance angle
no body clearance angle
high cutting angle
