Photo 1 of SAE Thread Repair Helicoil Kit - 131PC with HSS Drill Bits, Inserts, Taps, and Breakoff Tools for Rethreading on Metal, Engine, Pipe Repair - Sizes 1/4" 5/16" 3/8" 7/16" 1/2"

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Photo 1 of SAE Thread Repair Helicoil Kit - 131PC with HSS Drill Bits, Inserts, Taps, and Breakoff Tools for Rethreading on Metal, Engine, Pipe Repair - Sizes 1/4" 5/16" 3/8" 7/16" 1/2"Photo 2 of SAE Thread Repair Helicoil Kit - 131PC with HSS Drill Bits, Inserts, Taps, and Breakoff Tools for Rethreading on Metal, Engine, Pipe Repair - Sizes 1/4" 5/16" 3/8" 7/16" 1/2"