Mitutoyo  ACM-2"MX Micrometer, IP65, Uni-Mike,  317-352-30

1"-2", 0.00005"/0.001 mm 

This Digimatic Micrometer Interchangeable Anvil Type lets you measure a range of different features.

It offers the following benefits:

• It is designed to accept interchangeable anvils shaped for specific tasks.
• You can use it to measure the wall thickness of tubes, as well as openings and slots from edge to edge, and features in
  hard-to-reach locations.