Features 1、The bore gauges are used to measure internal dimensions of work pieces by comparative method. 2、These series bore gauges are equipped with a good guiding protective bridge which can be self-centering exactly and reliably. 3、The moveable anvil on one side and an interchangeable on another side, which serves for setting the bore diameters. 4、This dial bore gauge 's measuring range is 50-160mm 5、Easy to measure, and with high accuracy, which is 0.01. Specification The bore gauges are used to measure internal sizes of work parts by comparative method.These series bore gauges are equipped with a good guiding protective bridge which can be self-centering exactly and reliably, and measuring range is 50-160mm Features: The bore gauges are used to measure internal sizes of work parts by comparative method. These series bore gauges are equipped with a good guiding protective bridge which can be self-centering exactly and reliably. The moveable anvil on one side and an interchangeable on another side, which serves for setting the bore diameters. This dial bore gauge 's measuring range is 50-160mm Easy to measure, and with high accuracy, which is 0.01. Specification: Material: metal Type: inner diameter scale Measure range: 50-160mm Accuracy: 0.01 Size: as the picture shows Weight: Approx.815g/28.7oz Package list: 1 * Dial bore gauge 1 * Extension rod 1 * small parts 5 * Measuring head 2 * box Package List