FJC Thread Chaser Set Standard/SAE. NOT for use with stainless steel material. Repairs internal/external threads. Repairs damaged threads on condensers, accumulators, evaporators and hose assemblies. Domestic and Import.
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.
Tap Guide M12x1.5
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