The screw thread micrometer has 25 to 50 mm with 2 to 3 mm/13-9TPI and has a fixed anvil and directly indicates screw pitch diameter, thus, no need for calculation.
The screw thread micrometer has 25 to 50 mm with 2 to 3 mm/13-9TPI and has a fixed anvil and directly indicates screw pitch diameter, thus, no need for calculation.