① Spiral Fluted Tap Series for blind hole Overall length L Thread length ℓ Thread + Neck length ℓn Shank length ℓs Shank dia. Ds Size of square K Length of square ℓk JIS VUSP CH Spiral Fluted Taps (for blind hole) ① JIS Z-PRO Coated Spiral Fluted Taps with Coolant Through Hole Spiral Fluted Taps (for through hole) ② Specification <2D Coating Spiral Pointed Taps (for through hole) ③ Recommended Tapping Speeds depending on Materials Low carbon steels Medium carbon steels High carbon steels Alloy steels Stainless steels 低炭素鋼 中炭素鋼 高炭素鋼 合金鋼 ステンレス鋼 10 20 10 25 10 25 10 20 3 10 〜 〜 〜 〜 〜 Hand Taps ( m / min ) ( m / min ) ( m / min ) ( m / min ) ( m / min ) ④ Product Features ●Durability is improved by premium powder HSS and special coating. ●Chip ejection efficiency is improved and cutting resistance is reduced by the unique cutting Cemented Carbide Taps ⑤ edge shape, achieving a good internal thread and long tool life. ●Appropriate tool projection length is secured, preventing chips from interfering with the holder. ●Best suitable for tapping with water soluble cutting fluid. ●VUSP CH has the most effective coolant hole size for internal lubrication that can supply adequate cutting fluid to the chamfer part. This leads to high performance of cooling, prevention of welding and wear resistance, and achieves the Roll Taps excellent thread surface finish. Chips are smoothly ejected from bored holes to ensure consecutive tapping. ⑥ ■Situations by different pressures Special Thread Taps Simple Inspection Tools ⑦ 1.5 Mpa 3 Mpa 6 Mpa Pipe Taps ⑧ ■Tapping Data Tapping conditions [M6×1] After 500 holes (Can continue to be used) Workpiece Material S50C Excellent thread surface Less damage on the edge Uniform chips’ shape Tapping Length 12mm Thread Mills Premium Thread Mills Tapping Speed 20m/min ⑨ Machinery Type Machining center, vertical type Tapping Fluid Water soluble cutting fluid Internal Coolant Pressure 1.5MPa Dies Tapping conditions [M10×1.5] After 420 holes (Can continue to be used) ⑩ Workpiece Material S50C Excellent thread surface Less damage on the edge Uniform chips’ shape Tapping Length 20mm Tapping Speed 20m/min Machinery Type Machining center, vertical type Center Drills Centering Tools Tapping Fluid Water soluble cutting fluid ⑪ Internal Coolant Pressure 1.5MPa JIS ①-19