SU+SL

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

Specification

E 2D

Oxide

Recommended Tapping Speeds depending on Materials

ow carbon steelsMedium carbon steelsStainless steels
10〜1510〜155〜15

For icon explanation, refer to P.50 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

Tapping condition(M5×0.8) Comparison of internal threads

Work materialSUS304(90HRB)SU+SL 2,000 holes
Tappingspeed15m/min
Hole sizeφ4.2
Tappinglength12mm,through hole
Machine lVertical machiningcenter
TappingfluidInsoluble oil without chlorineRoughness of thread flank face Ra=1.1μm

Shape of internal thread Shape of internal thread

Product System

System table of taps for stainless steel, through hole use

SUS316 ZEN-P

SUS304 Synchronized feed zone SU-PO SUS303 Asynchronized feed zone

0m/min 5m/min 10m/min 15m/min 20m/min

Tapping speed