产品描述：
Digimatic Tubular Inside Micrometers
Wide measuring range with interchangeable anvils. 17mm diameter extension rods. Large LCD display. Inch/Metric conversion. Zero setting. Preset. Data hold. Data output. Auto power off. Tungsten carbide tipped measuring faces. Satin chrome finish to micrometer head.
Accuracy: /-(3NL/50)mm. Graduation: 0.001mm/0.0001"
Series 339