02-07-2017, 03:55 AM
Consistent dialling.
Never seen them on calipers but on micrometers they often come with a secondary spring loaded dial that acts like a torque wrench. You spin the dial closing the jaws until it comes up against the object you are measuring and then the secondary ratchet click over at the same torque each time. Called a ratchet screw, friction dial or ratchet dial.
![[Image: parts-of-outside-micrometer.png]](https://s3.amazonaws.com/test.classconnection/687/flashcards/384687/png/parts-of-outside-micrometer.png)
I've never really needed the extra precision that a micrometer gives you over a set of calipers. Calipers do 99% of all the measuring I ever do when reloading.
Never seen them on calipers but on micrometers they often come with a secondary spring loaded dial that acts like a torque wrench. You spin the dial closing the jaws until it comes up against the object you are measuring and then the secondary ratchet click over at the same torque each time. Called a ratchet screw, friction dial or ratchet dial.
I've never really needed the extra precision that a micrometer gives you over a set of calipers. Calipers do 99% of all the measuring I ever do when reloading.