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 Stainless steel JIS Stainless steel ② Spiral Fluted Tap Series for through hole Overall Thread Thread + Neck Shank Shank Size of Length oflengthlengthlengthlengthdia.squaresquareLℓℓnℓsDsKℓk JIS ① SU+SL Spiral Fluted Taps for Stainless Steels, Through Hole Use(with LH Spiral Flutes) ② Specification <2D Oxide 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 10〜15 10〜15 10〜15 10〜15 5〜15 ④ (m/min) (m/min) (m/min) (m/min) (m/min) Product Features ●Suitable for stainless steels tending to work-harden and sticky, as well as chrome steels and molybdenum steels, through hole use. ●Recommended speed : 5 〜 15m/min ●In tapping SUS304, SU+SL has more than 3 times longer tool life than SU-PO. Even in 2000 tapping holes, the surface of thread ⑤ finish is good and the shape of threads is clearly stable. ●Adopting left hand spiral flutes, compared with SU-PO, SU+SL improves the chip ejection and realizes longer tool life. Tapping Data Comparison of Internal Threads Tapping condition [M5×0.8] SU+SL 2,000 Holes SU-PO 700 Holes Work Material SUS304(90HRB) ⑥ Tapping Speed 15m/min Hole Size φ4.2 Tapping Length 12mm, through hole Machine Vertical machining center Tapping Fluid Non-water soluble cutting oil without chlorine ⑦ Roughness of Thread Flank Face Ra=1.1μm Roughness of Thread Flank Face Ra=2.0μm ■ ■ ■ ■ め め め め ね ね ね ね じ じ じ じ 形 形 形 形 状 状 状 状 ⑧ Speed chart Shape of Internal Thread Shape of Internal Thread Slow Tapping Speed Fast Work Piece 5m/min 10m/min 15m/min 20m/min 30m/min Work Piece Material Fully synchronous feed area Material ⑨ Hard-to-machineStainless Steel ZEN-P Hard-to-machineStainless Steel SUS316 etc. SUS316 etc. SUS304 SUS304 ⑩ SU+POSUS303SU - PO SU+SL SUS303 ⑪ 5m/min 10m/min 15m/min 20m/min 30m/min Tapping range by material being cut. JIS ②-15