Recommended for use with all brands of standard cutting tips and welding tips. These tip cleaner kits consist of top quality stainless steel wires. The tapered pilot ends will not damage tip ends. Cleaner numbers and drill sizes are stamped on each case. Includes tip sizes: 6, 7, 8, 10, 12, 14, 15, 16, 17, 18, 22, 24, & 26.