Tubular Inside Micrometer, Range 50-1000/0.01mm

The Mitutoyo 137-204 Extension Rod Tubular Inside Micrometer - Metric has the following specifications:● Range: 50 - 1000mm● Travel of micrometer head: 13mm● Accuracy: +/-(3+n+L/50)μm L=Maximum measuring length (mm) n=Number of rods Fraction rounded up● Graduation: 0.01mm or .001"● Extension rods: 13mm, 25mm, 50mm (2 pcs.), 100mm, 200mm (2pcs.), and 300mmFeatures:● 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.