Boring diameter measuring gauge 301921

Bore Measuring Device Normaco Bore Measuring Device is a helpful tool to assist in measuring of a bore diameter during line boring. The device allows for measuring of the bore diameter with out removing the bar. It has a measuring range from diameter 45mm up to 300mm. Device body has 12mm diameter. When used, the spring loaded plunger is pressed in and secured with a nut. The device is then placed thru the boring bar of the line boring machine and fed inside the bore. when in place, the securing nut is released, and spring pushes the measuring rod out. Nut is secured again and pulled out, after which the device can be measured with a vernier caliber, and bore diameter can be read. The measurement device has corrosion resistant surface coating giving the kit long life time.