The Mitutoyo 102-302 Outside Micrometer has the following specifications:
Range: 25-50mm
Graduation: 0.01mm
Accuracy: +/- 0.002mm
FEATURES
Heat-insulated frame, tapered (on the anvil side) for hard-to-reach places
With a standard bar except for 0-25mm
A ratchet stop or friction thimble for a constant measuring force
Supplied in a fitted plastic case