WOOD SPENCER 1 3/8 - 18 SPECIAL BREAK OFF GRIND HSS TAP, THIS TAP FOR ONE REASON OR ANOTHER HAS BEEN GROUND REDUCING THE BODY DIAMETER TO AROUND 1 INCH. THE ONLY REASON FOR SUCH MODIFICATION IS TO INSURE TAP BREAKS BEFORE PART TURNS. THIS TAP WILL NOT BREAK UNLESS IN MY OPION OVER 5 HORSE POWER OR MORE IS APPLIED WITHOUT ABILITY TO TURN.
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