Soldering Iron Maintenance Kit For Use With Soldering Iron 5ZGU9 Application Cleaning and Maintenance of Heavy-Duty Soldering Irons Features Bore Brushes are Constructed On High-Speed Steel Quick Disconnect Bits Allowing For Use In Any Standard Hand Drill Specialized Synthetic Abrasive Pad Quickly and Easily Removes The Oxidation From The Shank Of Soldering Iron Tip Includes Bore Brush For 1-1/8 In Irons Only Product Type Soldering Iron Maintenance Kit