Features These series drill jigs are equipped with a good leading protective bridge that can be accurate and reliable self-centring The movable anvil on one side and a replaceable on the other side, which serves to adjust the hole diameter The hole gauges are used to measure internal dimensions of workpieces by comparison processes Easy to measure and with high accuracy of 0.01 The measuring range of this dial gauge is 50-160 mm Descriptions: The bore gauges are used to measure the internal dimensions of workpieces by comparison methods. These hole gauges from the series are equipped with a good guide protection bridge that can accurately and reliably self-centering, and the measuring range is 50-160 mm. Specifications: Material: metal. Type: Inner Diameter Scale Measuring range: 50-160 mm. Accuracy: 0.01 Weight: 1211g Features: The movable anvil on one side and a replaceable on the other side that serves to adjust the bore diameter. The bore gauges are used to measure internal dimensions of workpieces by comparison methods. The measuring range of this dial gauge is 50-160 mm. These series bore gauges are equipped with a well-leading protective bridge that can be precisely and reliably centred yourself. Easy to measure and with high accuracy of 0.01. Package includes: 1 x dial gauge. 5 x measuring heads. 1 x extension rod. 1 x set of small accessories. Package List