It is made by IC clip and chip jack as an auxiliary tool of the tester lead rod and it is attached to the test pin of board and used for voltage check and adjustment. Similar products from tester manufacturers are being sold, but we will do \ 1,000 or more. Since it can be created around ¥ 160 including wires, we create and distribute a lot for internal use. Also this product is easy to put on the middle finger and index finger and very easy to use. The wire mounting part is also U shaped so that the wire can be mounted properly without blurring and soldering is easy to do.
With this size, the hooked part is strong and can be hung on the test pin of the logic board without stress. Since the lead wire is U-shaped so as to wrap the mounting part, it is easy to put the solder without moving the lead wire.