THIS ITEM IS TAPERED PLUGS FOR SEALING ENGINE BLOCKS AND OTHER MACHINERY WITH CONFIDENCE.! MADE BY IRONTITE EL MONTE CALIFORNIA SO TOP QUALITY ITEMS. REF ON PACK IS 261080 TYPE H NOT SURE OF DRILL SIZER NEEDED BUT LOTS OF INFO ON THEIR SITE,? . PACK OPENED BY ME AND JUST MINOR STORAGE MARKS AS ABOUT 6 YEARS OLD OR SO. THE BOX IN ONE OF THE PICS OPENED BY ME FROM WHEN SEALED ORIGINALLY SO PROPER PARTS. THANKS FOR LOOKING. (JUST ONE POSTAL CHARGE SO BUY A COUPLE FOR SPARES.! EACH SALE IS FOR PACK OF 5 UNITS.
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