Designed for use on fine relay contacts, these burnishers are the perfect tools for removing the oxide layer from the precious metals of fine relay contacts. These burnishers feature the following: Plastic insulated handles allow them to be used on live contacts without any shocks or shorts Removes the oxide layer and any corrosion off contacts without leaving filings or debris Packaged in a clear plastic bag to protect the burnishers from grease and moisture Includes (3) Fine Relay Contact Burnishers