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Your cart is empty.Big Sert Tap Guide M8x1.25 Part #75825 TAP GUIDES INSURE THAT THREADS ARE SQUARE TO SURFACE. The lower portion of the tap guide should remain as square as possible to the engine surface. Turn the tap slowly while making sure the guide remains flush.
NomersMcBorg
Reviewed in the United States on January 3, 2023
This saved me from having to pull a cylinder head off my truck. I used a decent drill jig to get the corroded and broken off stud out of the hole first, but there was not much left for threads in the head. Now the threads are probably better than they were new.
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