UNC THREAD REPAIR WIRE INSERT KIT HSS TAP SET HELICOIL INSERTS KITS HELI COIL

1/4"-20 UNC HSS STI Tap, HSS Tapping Drill & 25 pcs 1.5D Stainless Steel Heli-Coil Wire Inserts. 5/16"-18 UNC HSS STI Tap, HSS Tapping Drill & 25 pcs 1.5D Stainless Steel Heli-Coil Wire Inserts. 3/8"-16 UNC HSS STI Tap, HSS Tapping Drill & 25 pcs 1.5D Stainless Steel Heli-Coil Wire Inserts.