INCLUDES THE TAPS AND DIES, GENERALLY USED ON BRITISH SEAGULL MOTORS WITH BRITISH THREADS. PARTICULARLY THE EARLIER MODELS. ADDITIONAL TAPS AND DIES CAN BE SUPPLIED SEPERATELY IF REQUIRED. CONTENTS: BSF 1/4", 5/16" AND 3/8" BOTTOMING TAPS (1 EACH) BSF 1/4", 5/16" AND 3/8" DIES (1 EACH)