(NEW WALTON 18001 6 PIECE 4 FLUTE TAP EXTRACTOR SET IN CASE 3/16 TO 1/2. 3) APPLY A TAP WRENCH TO EXTRACTOR AND GENTLY TWIST FORWARD AND BACKWARD TO LOOSEN THEN BACK OUT THE BROKEN TAP. INCLUDES ON EACH #10(3/16), 1/4, 5/16, 3/8, 7/16, 1/2 EXTRACTORS AND BLOW MOLDED CASE.