easy to rust, not easy to stick to dust, no need to grease, easy and simple maintenance
3. Stable insulation performance: one end is the insulated electric board and the other end is the plastic insulation sleeve. It can ensure the operating safely.
4.Customizable
5.The Measuring head is made of bearing steel: High hardness, not easy to rust and deformation
6.Multifunctions
1）Measure the switch angle steel whether is square when installed
2）Measure the internal lock switch parts whether is squ