Precision is our Profession

Mitutoyo Tubular Inside Micrometer, Series 137 (Extension Rod Type)

• Wide range of ID measurements by combining extension rods (pipes) and anvils with the micrometer head.
• Carbide-tipped measuring faces are available.
• Supplied in fitted plastic case except 1500mm / 60? come in wooden case. 

Technical Data

Metric Model
Accuracy: ?(3+n+L/50)?m
L=Maximum measuring length (mm)
n=Number of rods
Fraction rounded up
Inch Model
Accuracy: ?{.00015+.00005n+.00005R*/2}”
R=Maximum measuring length (inch)
n=Number of rods
Fraction rounded up
Graduation: 0.01mm or .001″