JIS F-SL

Spiral Fluted Taps for High Speed Tapping, Through Hole Use (with LH Spiral Flutes)

Specification

Coating

Recommended Tapping Speeds depending on Materials

Low carbon steels Medium carbon steels

15低炭素鋼25 15中炭素鋼25

(m/min) (m/min)

Product Features

  • High speed machining is possible with a machine equipped with a fully synchronous feed mechanism.

●At low speed, the shape and discharge of the chip deteriorate, causing problems. Tapping Data Tapping conditions [M8 × 1.25]

Workpiece MaterialS50C
HardnessRaw material
Bored Hole ShapeThrough hole
Tapping Length1.5D〜F-SL
Machinery TypeM/CCan Continue
Tapping DirectionVertical
Type of FeedSynchronousCompetitors PO
Tapping Speed30m/min l500 0100015002000 2500
Cutting FluidWater soluble cutting fluid(Number of holes processed.
Bored Hole ProcessDrill
Tapped Holes2,000 holes

Recommended speed table

Slow Tapping Speed Fast

Work piece5m/min50m/min 30m/min 20m/min 15m/min 10m/min Work piece
MaterialFully synchronous feed area Material
AlloySCMSCMAlloy
SteelSCrSCrSteel
HighHigh
CarbonS45CF-SL S45CCarbon
SteelSteel
S45CHDISL S45C
MediumMedium
CarbonPO+POCarbon
SteelS30CS30CSteel
LowS25CS25CLow
CarbonCarbon
SteelSS400SS400Steel
5m/min50m/min 30m/min 20m/min 15m/min 10m/min

The above diagram is for the different materials shown.