UNC5/16-18 Helicoil Thread Repair Kit – SAE Helicoil Kit. COMPLETE REPAIR SOLUTION：This UNC 5/16-18 helicoil kit is your all-in-one fix for stripped or worn threads. ORGANIZED & PORTABLE: The helicoil kit includes HSS drill bit, tap, installation & break-off tools, hex wrench, 25 stainless steel inserts, and a user manual.
