Bens Workshop | Fixing and calibrating a rusty seized Moore and Wright 2 inch imperial micrometer @BensWorkshop | Uploaded 2 years ago | Updated 2 days ago
Fixing and calibrating a rusty seized Moore and Wright 2 inch imperial micrometer I bought for a pound (£1) at a car boot sale!

John over at @doubleboost published a series of 3 videos with is friend Bob on micrometer servicing which goes into more depth:

See pinned comment for links to Bob servicing micrometers.

0:00 Introduction
0:37 The first problem
0:54 Un-jamming the locking nut
1:52 Oiling the spindle thread
2:18 spindle freed off!
2:39 Removing rust with a soft brass brush
3:34 Removing the spindle
4:04 Inspecting the threads
7:54 After cleaning the threads with brake cleaner
8:05 cleaning the lock nut
9:50 First re-assembly
11:11 Checking calibration
12:49 Attempting to calibrate the micrometer
14:25 Disassembly to free barrel
17:37 Re-Checking calibration
18:32 Error in where the barrel is
19:00 Resetting the barrel position
19:40 Adjusting the stiffness of the thread
25:14 Checking final calibration
26:29 Conclusion