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ThreadMilling

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Various type of tools for thread milling

Highly suitable for threading of heat-resistant alloys or hardened steels
Also, applicable for large sized threading with low cutting forces

Applications & Features

Applications

Internal Thread millingExternal thread milling

Features

Tool selection guide for internal ISO metric threads

Inserts, Heads, Solid Carbide Endmills & Grades

Inserts, Heads, Solid Carbide Endmills
Solid Carbide Endmills

SolidThread

  • Pitch 0.25 mm – 3.5 mm, Tool diameter 0.72mm
  • Machining small diameter threads, such as M1x0.25 and 0-80UNF
Heads

TungMeister Heads for threading (VMT / VTR)

  • Pitch 0.5 mm – 4.5 mm, Tool diameter 10 mm
  • Head-changeable Thread-milling tools for less down-time than a solid tapping tool
Inserts

Inserts for Indexable Thread Milling

  • Pitch 1.5 mm – 6.0 mm, Tool diameter 17 mm
  • Able to incorporate multiple inserts for various threading diameters and pitches
Grades

AH725

  • Good balance between wear and chipping resistance
  • Suitable for machining steel and stainless steel under general cutting conditions

GH330

  • High resistance to wear and fracture
  • Suitable for continuous to medium interrupted cutting

Cutter bodies

Shank Type

Indexable Thread Milling (ø17- ø80 mm)

Cylindrical type holders for counter boring

Other

Shanks and adapters for TungMeister

Standard cutting conditions

ETTL/ETLN
ISO Workpiece material Grade Cutting speed
Vc (m/min)		 Feed per tooth
fz (mm/t)
Low carbon steel AH725 100 – 200 0.1 – 0.3
High carbon steel AH725 70 – 150 0.1 – 0.3
High carbon steels AH725 70 – 170 0.1 – 0.3
Cast steel AH725 70 – 170 0.1 – 0.3
Stainless steel AH725 90 – 140 0.1 – 0.3
Cast iron AH725 60 – 130 0.05 – 0.3
Aluminium alloys AH725 80 – 400 0.1 – 0.4
Heat-resistant alloys AH725 10 – 30 0.02 – 0.1
Titanium alloy AH725 20 – 90 0.02 – 0.1
  • Climb milling is recommended.
Single tooth threading mills
ISO Workpiece material Grade Cutting speed
Vc (m/min)		 Feed per tooth
fz (mm/t)
Mild steels / Unhardened steels < 200HB GH330 150 – 200 0.3 – 0.4
Carbon steels / Alloy steels < 300HB GH330 150 – 200 0.17 – 0.26
Die steels < 50HRC GH330 30 – 50 0.14 – 0.2
Stainless steels < 300HB GH330 150 – 200 0.05 – 0.12
  • Climb milling is recommended.
  • When threading a blind hole, use a right hand cutter in right-hand rotation. Cut up from the bottom to prevent chip recutting.
  • When machining internal threads from the mouth, use the left-hand cutter in left-hand rotation.
SolidThread / TungMeister
ISO Workpiece material Condition Tensile
strength
[N/mm2]		 Hardness HB Cutting speed
Vc (m/min)		 Tool diameter
　 Feed per tooth fz (mm/t)
AH725 ø2 ø3 ø4 ø6 ø8 ø10 ø12 ø14 ø16 ø20 ø25 ø30
　 Non-alloy steel and cast steel, free cutting steel 　< 0.25 %C Annealed 420 125 100 – 250 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
≥ 0.25 %C Annealed 650 190 80 – 210 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
　< 0.55 %C Quenched and tempered 850 250 65 – 170
≥ 0.55 %C Annealed 750 220 110 – 180 0.02 0.03 0.03 0.05 0.06 0.07 0.08 0.09 0.1 0.12 0.15 0.18
Quenched and tempered 1000 300 95 – 160 0.02 0.03 0.03 0.05 0.06 0.07 0.08 0.09 0.1 0.12 0.15 0.18
Low alloy steel and cast steelLow alloy steel and cast steel
(less than 5% of alloying elements)		 Annealed 600 200 90 – 160 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
Quenched and tempered 930 275 65 – 200 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
1000 300 70 – 210 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
1200 350 95 – 160 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
High alloyed steel, cast steel, and tool steel Annealed 680 200 130 – 170 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
Quenched and tempered 1100 325 75 – 100 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
Stainless steel and cast steel Ferritic/martensitic 680 200 110 – 170 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
Martensitic 820 240 70 – 155 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
　 Stainless steel Annealed 600 180 85 – 100 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.1 0.11
　 Cast iron nodular (GGG) Ferritic/martensitic 180 120 – 160 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
Pearlitic 260 75 – 160 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
Grey cast iron (GG) Ferritic 160 70 – 150 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
Pearlitic 250 110 – 140 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
Malleable cast iron Ferritic 130 120 – 160 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
Pearlitic 230 110 – 140 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.21 0.15 0.18 0.21
　 Aluminum- wrought alloy Not cureable 60 160 – 300 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
Cured 100
Aluminum-cast,Aluminum-cast,
alloyed		 =<12% Si Not cureable 75 150 – 350 0.03 0.04 0.04 0.06 0.07 0.08 0.09 0.11 0.12 0.15 0.18 0.21
Cured 90
>12% Si High temperature 130 100 – 250 0.02 0.02 0.03 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.10 0.12
Copper alloys >1% Pb Free cutting 110
Brass 90
Electrolitic copper 100
Non-metallic Duroplastics, fiber plastics 100 – 400 0.05 0.06 0.07 0.09 0.1 0.11 0.12 0.13 0.15 0.18 0.22 0.25
Hard rubber
　 High temp. alloys Fe based Annealed 200
Cured 280
Ni or Co based Annealed 250 20 – 80 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05
Cured 350
Cast 320
Titanium Ti alloys RM 400
Alpha+beta alloys cured RM 1050 20 – 80 0.02 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.05 0.05
　 Hardened steel Hardened 55 HRC 55 – 65
Hardened 60 HRC 45 – 55
Chilled cast iron Cast 400 90 – 105
Cast iron Hardened 55 HRC 55 – 65
  • With long edge, reduce feed rate to 40%.
MTECS – Small diameter, Short type
ISO Workpiece material Cutting speedCutting speed
Vc (m/min)		 Tool diameter
Feed per tooth fz (mm/t)
ø1.5 ø2 ø3 ø4 ø5 ø6 ø7 ø8 ø9 ø10 ø12 ø14 ø15
Low & mediumLow & medium
carbon steels		 60 – 120 0.05 0.05 0.07 0.09 0.11 0.13 0.14 0.15 0.16 0.16 0.17 0.18 0.18
High carbonHigh carbon
steels		 60 – 90 0.04 0.05 0.06 0.08 0.09 0.1 0.12 0.13 0.14 0.14 0.16 0.17 0.18
Alloy steels,Alloy steels,
treated steels		 50 – 80 0.04 0.04 0.05 0.05 0.06 0.07 0.07 0.08 0.09 0.1 0.12 0.13 0.14
Cast steels 70 – 90 0.04 0.04 0.05 0.05 0.06 0.07 0.07 0.08 0.09 0.1 0.12 0.13 0.14
Stainless steels 60 – 90 0.03 0.03 0.04 0.05 0.06 0.06 0.07 0.08 0.09 0.1 0.11 0.12 0.13
Cast iron 40 – 80 0.05 0.05 0.07 0.09 0.11 0.13 0.14 0.15 0.16 0.16 0.17 0.18 0.18
Aluminum 80 – 150 0.05 0.05 0.07 0.09 0.11 0.13 0.14 0.15 0.16 0.16 0.17 0.18 0.18
Synthetics, duroplastics, thermoplastics 50 – 200 0.1 0.11 0.12 0.14 0.16 0.18 0.19 0.19 0.19 0.19 0.19 0.2 0.2
Nickel alloys,Nickel alloys,
titanium alloys		 20 – 40 0.03 0.03 0.04 0.04 0.05 0.06 0.06 0.06 0.07 0.07 0.07 0.08 0.08

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