Professional Quality Precision Measuring Tool
Measure dimensions from inside of holes to outside edges. The spherical anvil or spindle contacts the inside curved surface at a single point, permitting accurate gaging of wall thickness to 0.0001".
The back side of the anvil stem of the Ball-Anvil Tube Micrometers is cut away, making it slim enough to insert into small parts such as sleeves, collars, tubing and other cylindrical workpieces to measure wall thickness.
- Microfine graduations on satin chrome.
- Anvil and spindle hardened and ground; spindle thread hardened, ground and lapped.
- A wrench is included for quick and easy zero adjustment on sleeve.
- Ratchet stop thimble for exact readings.
- Accuracy: 0.0001".
- Meets or exceeds Federal accuracy specs.
- Includes fitted case.