Schwenk Individual bore gauge 11300000 type SU Metric Range 280-510mm with steel pins, Without Indicator. Measuring depth 400mm, 9 anvilsSchwenk SU Precision bore gauge. Self centring two point dial bore gauge with spring loaded centering disc. Transmission of the contact point travel is via a ring segment. Fixed, exchangeable measuring pins can be set to different Diameters. Carbide tipped point. Gauge holder with hand and ambient temperature protection. Fixed measuring pins of steel. Application: For precise measuring of bores Diameters also can measure roundness, and cylindricity as