Products - Solutions for gauging - Measurement of depths - For the simultaneous measurement of diameter and depth of a bore: Gauge-2Dimensions - DIATEST Hermann Költgen GmbH
52-646-400-0 Gauge Measurement Tool Extender Cylinder Dial Bore Gage Set with 1.4-6" Measuring Range Measuring Depth of 9.5", 0.0005" Graduation Dial Bore Gage with Portable Case - Yahoo Shopping