11900170033 - 8 pieces - 4 DIN352 M4 to M8 STEAM GUN HSS taps + 4 buffed cut extra-short split point HSS drill bits
11900170029 - 15 pieces - 7 DIN352 M3 to M12 STEAM GUN HSS taps + 7 HSS Steam drill bits + 1 tap wrench ESSENTIAL