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JIS SU+SL

Spiral Fluted Taps for Stainless Steels, Through Hole Use（with LH Spiral Flutes）

Specification

<2D

Oxide

Recommended Tapping Speeds depending on Materials

Low carbon steelsMedium carbon steelsHigh carbon steelsAlloy steelsStainless steels
10低炭素鋼1510中炭素鋼1510高炭素鋼1510合金鋼155ステンレス鋼15
(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 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]

Work MaterialSUS304(90HRB)SU+SL 2,000 HolesSU-PO 700 Holes
Tapping Speed15m/min
Hole Sizeφ4.2
Tapping Length12mm, through hole
MachineVertical machining center
Tapping FluidNon-water soluble cutting oil without chlorine

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

Speed chart Shape of Internal Thread Shape of Internal Thread

Slow Tapping Speed Fast

5m/min10m/min15m/min20m/min30m/min
Work PieceWork Piece

Material Fully synchronous feed area Material

Hard-to-machineZEN-P Hard-to-machine
Stainless SteelStainless Steel
SUS316 etc.SUS316 etc.
SUS304SUS304
SU+POSU+SL
SUS303SU-POSUS303

5m/min 10m/min 15m/min 20m/min 30m/min

Tapping range by material being cut.