Test ball and probe

Testing ball, wire, probe are designed according to the standard requirements of IP1X-IP4X.
Technical Parameters
IP1X: Test ball ¢50mm
IP2X: Test ball ¢12.5mm
IP3X: Test probe ¢2.5mm,length 100mm
IP4X: Test probe ¢1.0mm, length 100mm
With M6 screw on the other end of the handle.