DIN Spiral Fluted Taps (for blind hole)Spiral Fluted Taps(for through hole)Spiral Pointed Taps(for through hole)Hand TapsCementedCarbide TapsRoll TapsSpecial Thread TapsSimple Inspection ToolsPipe TapsThread MillsPremium Thread MillsDiesCenter DrillsCentering Tools Spiral Fluted Tap Series for blind hole Overall Chamfer + Thread Thread + Neck Shank Shank Size of Length oflengthfull threadlengthlengthlengthdia.squaresquareLℓtℓℓnℓsDsKℓk① DIN SP ① Spiral Fluted Taps ② Specification ■Spiral flutes continuously curl the chips and discharge them back toward the shank of the tap. Spiral flute taps are the most suitable for blind hole processing. ③ Recommended Tapping Speeds depending on Materials Medium carbon steels High carbon steels 中炭素鋼 高炭素鋼 5〜10 5〜10 (m/min) (m/min) ④ TYPE:1 DIN371 ⑤ TYPE:2 DIN371 TYPE:3 DIN376 ⑥ ⑦ TYPE:4 DIN371 TYPE:5 DIN376/DIN374 ⑧ TYPE:6 DIN376 TYPE:7 DIN5156 ⑨ ⑩ ⑪ DIN ※ This product is different from JIS products in shape and dimensions, please be careful when using. ①-50