深入的衡量

Mono-block depth gauges with a hook: Mono-block vernier. For depth, step, internal and external groove measurements. With screw at the back of far end of caliper bar. Made of stainless or carbon steel. There are two types of hooks for choice. Type I & Type II)There are many different measure ranges: 150mm, 200mm, 300mm, 500mm.Digital depth gauges with a hook: For depth, step, internal and external measurements. Manual power on/off. Zero setting at any position. Metric/Inch system conversion at any position. With data output interface. There are many different measure ranges: 150mm, 200mm, 300mm, 500mm.