Description: Sharp stainless steel needle is extremely thin and hard, which can easily prick the cable sheath for measuring without spliting it Use for auto maintainance, tele-communication testing, construction site testing and some other cable non-destructive testing Metal material?Brass?Stainless steel Insulator material?PA Rated voltage/current?30Vac-60Vdc /MAX.1A Specification: Size: approx.73mm Connection: 4mm banaba socket Package Includes: 1 piece Red needle test probe 1 piece Black needle test probe