(NEW WALTON 10374 3/8 4 FLUTE TAP EXTRACTOR 9-10MM TAP. 3) APPLY A TAP WRENCH TO EXTRACTOR AND GENTLY TWIST FORWARD AND BACKWARD TO LOOSEN THEN BACK OUT THE BROKEN TAP. THE HARDENED STEEL FINGERS OF WALTON TAP EXTRACTORS FIT IN THE FLUTES OF A BROKEN TAP TO BACK IT OUT SIMPLY AND SAFELY.