产品描述：
Dial Depth Gauges
Designed for measuring the depth of holes, narrow grooves and steps. Hardened steel base, ground and microlapped. Dial indicator attached to the base by a clamp screw and is easily interchangeable. Spindle lifting lever is maintained under spring pressure.
Series 7
Rods supplied: 0-200mm: 10, 20, 30 & 100mm 0-8": 1, 2 & 4"