139-173 100-500MM TUBULARI/S MICROMETER

Series 139 - Metric
Each set consists of inside micrometer head and a series of extension pipes of different length, which are hardened, ground, micro-lapped and heat insulated. Satin chrome finished head with positive locking clamp and carbide measuring faces.

Accuracy:
Micrometer head stroke: 25mm (1”).
Graduation: 0.01mm (.001”).
Instrument error: ±(3+qty of rod + L/50)µm.
L = Maximum measuring length.