SAE Helicoil Thread Repair Kit, 131-Piece SAE Threaded Insert Kit with HSS Drill Bits & 304SS Inserts | 1/4" 5/16" 3/8" 7/16" 1/2" Sizes | Portable Case for Automotive & Industrial Repair

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About This [Complete SAE Helicoil Kit] This 131-piece SAE thread repair kit contains 115 stainless steel inserts, 5 HSS drill bits, 5 screw taps, 5 installation tools, and 1 hex wr ench in 1/4"-1/2" sizes – offering expanded capacity for comprehensive thread restoration. [Industrial-Grade Durability] Featuring heat-treated HSS drill bits and 304 stainless steel inserts that outperform carbon steel in corrosion resistance, ensuring repaired threads last longer than original ones. [Precision Engineering] 135° apex angle drill bits require 30% less drilling pressure, while rubber-coated installation tools provide secure grip and better control during insert placement in tight spaces. [Universal Compatibility] Effectively restores damaged threads in aluminum, cast iron, carbon steel, and alloy components – ideal for automotive spark plugs, engine blocks, machinery, and equipment maintenance. [Professional Organization] All components securely fit in a shock-resistant case with labeled compartments, enabling quick identification and portable storage for workshop or field service applications. Show more