Descriptions:_x000D_ The bore gauges are used to measure internal sizes of work pieces 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_x000D_ _x000D_ Features:_x000D_ The bore gauges are used to measure internal sizes of work pieces by comparative method._x000D_ These series bore gauges are equipped with a good guiding protective bridge which can be self-centering exactly and reliably._x000D_ The moveable anvil on one side and an interchangeable on another side , which serves for setting the bore diameters._x000D_ This dial bore gauge 's measuring range is 50-160mm_x000D_ Easy to measure, and with high accuracy, which is 0.01._x000D_ _x000D_ Specifications:_x000D_ Material: Metal_x000D_ Type: inner diameter scale_x000D_ Measure range:50-160mm_x000D_ Accuracy: 0.01_x000D_ Weight:1211g_x000D_ _x000D_ Package Include:_x000D_ 1 x Gauge Rod_x000D_ 1 x Gauge Head_x000D_ 5 x Measuring Rod_x000D_ 1 x Screw Washer_x000D_ 1 x Plastic Box