TungThread

product_Turning_TungThread

Effective threading tools for CNC lathes, Swiss-type lathes, and multitasking machines

Standard items cover a wide variety of threading inserts

Applications & Features

External threadingInternal threading

1. Internal coolant tool holder

• Optimized two streams of high-pressure coolant jets to maximize productivity.
• Applicable direct connection with tube free.

Inserts & Grades

Inserts

External threading Inserts

  • Standard inserts covering a wide variety of thread types

Internal threading Inserts

  • Standard inserts covering a wide variety of thread types
Main Grades

AH725

  • P15 – P30 / M15 – M30 / K25 – K30 / S15 – S25
  • Good balance between wear and chipping resistance
  • Suitable for machining steel and stainless steel under general cutting conditions

SH725

  • P20 – P30 / M20 – M30
  • High wear resistance
  • Designed for machining steel and stainless steel

AH8015

  • M01 – M20 / S10 – S20
  • Good balance between wear and fracture resistance
  • First choice for machining heat-resistant alloy under general cutting conditions

Toolholders

External Threading

TungThread Toolholders

Internal Threading

TungThread Toolholders

Practical examples

Part: Shaft Parts
Material: 42CrMo4/SCM440
Toolholder: STVOL2525M4 (Vertical style)
Insert: TNMC43NT6PSTUBPT (3 croner)
Grade: AH725
Cutting conditions: Thread shape = Stub ACME (3 ¾ (95.25mm))
Vc = 70 m/min (230 sfm)
TPI = 6 TPI (4.23mm)
Number of passes = 30
Application: External Threading
Coolant: Wet
Machine: NC Lathe

Standard cutting conditions

TungThread
ISO Workpiece Workpiece
materials
Hardness Cutting speed Vc (m/min)
AH8015 T05HP AH725 T313V NS9530 TH10 BX330
Steel / Alloy steel
S45C, SCM440, etc.
C45, 42CrMoS4, etc.
< 200 HB 80 – 180 100 – 200 80 – 180 100 – 200 150 – 200
> 200 HB 60 – 160 100 – 150 60 -160 100 – 150 100 – 170
Stainless steel
SUS304, etc.
X5CrNi18-9, etc.
50 – 130 70 – 130 50 – 130 70 – 130
Cast iron
FC250, FC300, etc.
250, 300, etc.
60 – 150 70 – 150 50 – 100 70 – 150 70 – 90
Aluminium 100 – 500
Heat-resistance alloys 20 – 80 10 – 40
High hardened steel 50 – 60 HRC 10 – 30 50 – 200
TungT-Clamp
ISO Workpiece Workpiece
materials
Hardness Grade Application Cutting speed
Vc (m/min)
Pitch (mm) Threads per inch (TPI)
Steel / Alloy steel
S45C, SCM440, etc.
C45, 42CrMoS4, etc.
< 200 HB AH725 Threading 80 – 180 Internal 2.11 – 5.08
External 1.27 – 4.23
Internal 5 – 12
External 6- 20
> 200 HB AH725 Threading 60 -160 Internal 2.11 – 5.08
External 1.27 – 4.23
Internal 5 – 12
External 6- 20
Stainless steel
SUS304, etc.
X5CrNi18-9, etc.
AH725 Threading 50 – 130 Internal 2.11 – 5.08
External 1.27 – 4.23
Internal 5 – 12
External 6- 20
TetraMini-Cut
ISO Workpiece Workpiece
materials
Hardness Priority Grade Cutting speed
V
c (m/min)
Pitch (mm) Threads per inch (TPI)
Steel / Alloy steel
S45C, SCM440, etc.
C45, 42CrMoS4, etc.
< 200 HB First choice SH725 60 – 150 0.4 – 2.0 64 – 12
Fracture resistance AH725 60 – 150 0.8 – 3.0 32 – 8
> 200 HB First choice SH725 60 – 150 0.4 – 2.0 64 – 12
Fracture resistance AH725 60 – 150 0.8 – 3.0 32 – 8
Stainless steel
SUS304, etc.
X5CrNi18-9, etc.
First choice SH725 50 – 80 0.4 – 2.0 64 – 12
Fracture resistance AH725 50 – 80 0.8 – 3.0 32 – 8
Cast iron
FC250, FC300, etc.
250, 300, etc.
First choice AH725 50 – 100 0.8 – 3.0 32 – 8
Sharpness SH725 50 – 100 0.4 – 2.0 64 – 12
Superalloys
Ti-6AI-4V,
Inconel718, etc.
First choice SH725 30 – 100 0.4 – 2.0 64 – 12
Fracture resistance AH725 30 – 100 0.8 – 3.0 32 – 8
DuoJust-Cut
ISO Workpiece material Hardness Grade Cutting speed Vc (m/min) Pitch
(mm)
Threads per inch
(TPI)
Steel / Alloy steel
S45C, SCM440, etc.
C45, 42CrMoS4, etc.
< 200HB SH725 50 – 200 0.2 – 1.5 127 – 16
> 200HB SH725 50 – 200 0.2 – 1.5 127 – 16
Stainless steel
SUS304, etc.
X5CrNi18-9, etc.
SH725 50 – 200 0.2 – 1.5 127 – 16
Aluminium alloys
A5056, A6061, etc.
SH725 150 – 200 0.2 – 1.5 127 – 16
Copper alloy
C2600, C280C, etc.
SH725 100 – 200 0.2 – 1.5 127 – 16
Superalloys
Ti-6AI-4V, Inconel718, etc.
SH725 30 – 80 0.2 – 1.5 127 – 16
TinyMini-Turn Internal threading
ISO Workpiece material Hardness Grade Cutting speed Vc (m/min) Number of passes
Pitch (mm)
0.5 0.75 1 1.25 1.5
Steel / Alloy steel
S45C, SCM440, etc.
C45, 42CrMoS4, etc.
< 200HB SH725 40 – 140 6 – 8 8 – 10 10 – 12 12 – 15 15 – 18
> 200HB SH725 40 – 140 6 – 8 8 – 10 10 – 12 12 – 15 15 – 18
Stainless steel
SUS304, etc.
X5CrNi18-9, etc.
SH725 40 – 140 8 10 12 15 18
Cast iron
FC250, FC300, etc.
250, 300, etc.
SH725 30 – 100 7 9 12 14 17
Aluminium alloys, Copper alloy
Si < 12%
SH725 90 – 200 6 8 10 12 15

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