DoFeed

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High-feed cutter for a wide range of applications

DoFeed offers outstanding productivity due to its close-pitch insert orientation and light cutting geometry
The rich lineup is suitable for a wide variety of milling applications

Applications & Features

Applications

High feedFace millingSlottingShoulder millingRampingPlungingHole enlarging

Features

1. Outstanding productivity

– Excellent chip evacuation prevents chip packing.
– Innovative geometry allows for extremely light cutting for negative inserts.
– Close pitch cutters for high productivity.

2. Rich lineup of cutter bodies from ø16 to ø200 mm

Inserts & Grades

Inserts

LN*U

  • Maximum depth of cut
    – LN*U03: 1.0 mm
    – LN*U06: 1.5 mm
Main Grades

AH130

  • High chipping and fracture resistance
  • Designed for machining austenitic stainless steel under general cutting conditions

AH3225

  • Good balance between wear and fracture resistance
  • Suitable for steel and stainless steel

AH725

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

AH8015

  • Good balance between wear and fracture resistance
  • First choice for machining heat-resistant alloy under general cutting conditions

Cutter bodies

Shank Type

EXN03 (ø16 – ø40 mm)

Shank type for high-feed milling

Modular Type

HXN03 (ø16 – ø40 mm)

Modular head (TungFlex) for high-feed milling

Bore Type

TXN03 (ø40 – ø50 mm)

Bore type for high-feed milling

Shank Type

EXN06 (ø32 – ø40 mm)

Shank type for high-feed milling

Bore Type

TXN06 (ø50 – ø200 mm)

Bore type for high-feed milling

Practical examples

Example #1

Die and mold Industry

Part: Mold
Material: S45C / C45 (20 – 35 HRC)
Cutter: TXN06R063M22.0E04 (ø63, z = 4)
Insert: LNMU06X5ZER-MJ
Grade: AH3225
Cutting conditions: Vc = 197 (m/min)
fz = 1.5 (mm/t)
ap = 0.75 (mm)
ae = 45 (mm)
Application: Contouring
Coolant: Dry
Machine: Vertical M/C, BT50
Example #2

Aerospace Industry

Part: Turbine blade
Material: Heat resistant cast steel
Cutter: EXN03R030M32.0-05 (ø30, z = 5)
Insert: LNMU0303ZER-ML
Grade: AH725
Cutting conditions: Vc = 70 (m/min)
fz = 0.5 (mm/t)
ap = 0.5 (mm)
ae = 30 (mm)
Application: Shoulder milling
Coolant: Wet
Machine: Vertical M/C, BT50
Example #3

Die and Mold Industry

Part: Press-cutter blade
Material: SCM440/42CrMo4(44HRC)
Cutter: TXN06R063M22.0E06 (ø63, z = 6)
Insert: LNGU06X5ZER-MH
Grade: AH8015
Cutting conditions: Vc = 118 (m/min)
fz = 0.8 (mm/t)
ap = 0.8 (mm)
ae = 38 (mm)
Application: Face milling
Coolant: Dry (air)
Machine: Vertical M/C

Standard cutting conditions

TXN03 / EXN03 / HXN03
ISO Workpiece material Hardness Priority Grade Chip-breaker Cutting
speed		 Feed per tooth: fz (mm/t) Tool dia.: DCX (mm), Number of revolutions: n (min-1), Feed speed: Vf (mm/min), Max. depth of cut: ap = 1.0 mm
Tool dia.: DCX (mm) Plunging ø16, CICT = 2 ø18, CICT = 2 ø20 ø22 ø25 ø28 ø30 ø32 ø35 ø40 ø50
Vc
(m/min)		 ø16 ~ ø22 ø25 ~ ø50 n Vf n Vf n Vf n Vf n Vf n Vf n Vf n Vf n Vf n Vf n Vf
CICT = 3 CICT = 4 CICT = 3 CICT = 4 CICT = 4 CICT= 5 CICT = 4 CICT = 5 CICT = 4 CICT = 5 CICT = 5 CICT = 6 CICT = 5 CICT = 6 CICT = 5 CICT = 6 CICT = 5 CICT = 8
Carbon steels
（S45C / C45, S55C / C55, etc.)		 – 300HB First choice AH3225 MJ 100 – 300 0.5 -1.2 0.5 – 1.5 0.1 3,980 6,370 3,540 5,660 3,180 7,630 10,180 2,890 6,940 9,250 2,550 8,160 10,180 2,270 7,280 9,100 2,120 8,480 10,600 1,990 9,950 11,940 1,820 9,100 10,920 1,590 7,950 9,540 1,270 6,350 10,160
Vc = 200 m/min, fz = 0.8 mm/t Vc = 200 m/min, fz = 1.0 mm/t
Alloy steels
（SCM440 / 42CrMo4, etc.）		 – 300HB First choice AH3225 MJ 100 – 300 0.5 -1.2 0.5 – 1.5 0.1 3,980 6,370 3,540 5,660 3,180 7,630 10,180 2,890 6,940 9,250 2,550 8,160 10,180 2,270 7,280 9,100 2,120 8,480 10,600 1,990 9,950 11,940 1,820 9,100 10,920 1,590 7,950 9,540 1,270 6,350 10,160
Vc = 200 m/min, fz = 0.8 mm/t Vc = 200 m/min, fz = 1.0 mm/t
Prehardened steels　（NAK80, PX5, etc.） 30 – 40HRC First choice AH3225 MJ 100 – 200 0.5 – 1.0 0.5 – 1.0 0.1 2,980 4,170 2,650 3,710 2,390 5,020 6,690 2,170 4,560 6,080 1,910 5,350 6,690 1,710 4,790 5,990 1,590 4,450 5,570 1,490 5,220 6,260 1,360 4,760 5,710 1,190 4,170 5,000 950 3,330 5,320
Vc = 150 m/min, fz = 0.7 mm/t Vc = 150 m/min, fz = 0.7 mm/t
30 – 40HRC for wear resistance AH8015 MJ 100 – 200 0.5 – 1.0 0.5 – 1.0 0.1 2,980 4,170 2,650 3,710 2,390 5,020 6,690 2,170 4,560 6,080 1,910 5,350 6,690 1,710 4,790 5,990 1,590 4,450 5,570 1,490 5,220 6,260 1,360 4,760 5,710 1,190 4,170 5,000 950 3,330 5,320
Vc = 150 m/min, fz = 0.7 mm/t Vc = 150 m/min, fz = 0.7 mm/t
Austenitic stainless steels （SUS304 / X5CrNi18-9, etc.） – 200HB First choice AH130 MS 80 – 150 0.3 – 0.8 0.3 – 0.8 0.1 2,390 2,390 2,120 2,120 1,910 2,860 3,820 3,180 4,770 6,360 1,530 3,060 3,820 1,360 2,720 3,400 1,270 2,540 3,180 1,190 2,980 3,570 1,090 2,720 3,270 960 2,400 2,880 760 1,900 2,280
Vc = 120 m/min, fz = 0.5 mm/t Vc = 120 m/min, fz = 0.5 mm/t
Precipitation hardening stainless steels (SUS630 / X5CrNiCuNb16-4) 28HRC -28HRC –
(H1150)		 First choice AH130 MS 80 – 150 0.2 – 0.5 0.2 – 0.5 0.1 2,390 1,430 2,120 1,270 1,910 1,720 2,290 1,740 1,570 2,090 1,530 1,840 2,300 1,370 1,640 2,060 1,270 1,520 1,910 1,190 1,790 2,140 1,090 1,640 1,960 960 1,440 1,730 760 1,140 1,820
for wear resistance AH3225 MS Vc = 120 m/min, fz = 0.3 mm/t Vc = 120 m/min, fz = 0.3 mm/t
40HRC -40HRC –
(H900)		 First choice AH3035 ML 80 – 120 0.1 – 0.3 0.1 – 0.3 0.1 1,990 800 1,770 710 1,590 950 1,270 1,450 870 1,160 1,270 1,020 1,270 1,140 910 1,140 1,060 850 1,060 1,000 1,000 1,200 910 910 1,090 800 800 960 640 640 1,020
for impact resistance AH3035 MJ Vc = 100 m/min, fz = 0.2 mm/t Vc = 100 m/min, fz = 0.2 mm/t
Gray cast irons
（FC250 / GG25 / 250, etc.）		 150 – 250HB First choice AH725 MJ 100 – 300 0.5 – 1.2 0.5 – 1.5 0.1 3,980 6,370 3,540 5,660 3,180 7,630 10,180 2,890 6,940 9,250 2,550 8,160 10,180 2,270 7,280 9,100 2,120 8,480 10,600 1,990 9,950 11,940 1,820 9,100 10,920 1,590 7,950 9,540 1,270 6,350 10,160
Vc = 200 m/min, fz = 0.8 mm/t Vc = 200 m/min, fz = 1.0 mm/t
Ductile cast irons
（FCD400, etc.）		 150 – 250HB First choice AH725 MJ 80 – 200 0.5 – 1.2 0.5 – 1.5 0.1 2,980 4,770 2,650 4,240 2,390 5,740 7,650 2,170 5,210 6,940 1,910 6,110 7,640 1,710 5,460 6,820 1,590 6,360 7,950 1,490 7,450 8,940 1,360 6,800 8,160 1,190 5,950 7,140 950 4,750 5,700
Vc = 150 m/min, fz = 0.8 mm/t Vc = 150 m/min, fz = 1.0 mm/t
Titanium alloy
（Ti-6Al-4V, etc.）		 – 40HRC First choice AH130 ML 30 – 60 0.3 – 0.7 0.3 – 0.7 0.08 800 640 710 570 640 770 1,020 580 700 930 510 820 1,020 450 730 910 420 840 1,050 400 1,000 1,200 360 900 1,080 320 800 960 250 630 1,000
for impact resistance AH130 MJ Vc = 40 m/min, fz = 0.4 mm/t Vc = 40 m/min, fz = 0.5 mm/t
Heat-resistance alloy
（Inconel, Hasteroy, etc.）		 – 40HRC First choice AH8015 ML 20 – 50 0.1 – 0.3 0.1 – 0.3 0.05 600 240 530 210 480 290 380 430 260 340 380 230 290 340 200 260 320 260 320 300 300 360 270 270 320 240 240 290 190 190 300
for impact resistance AH725 ML Vc = 30 m/min, fz = 0.2 mm/t Vc = 30 m/min, fz = 0.2 mm/t
Hot mold steel
（SKD61 / X40CrMoV5-1, etc.）		 40 – 55HRC First choice AH8015 MH 80 – 150 0.1 – 0.5 0.1 – 0.5 0.05 2,390 1,430 2,120 1,270 1,910 1,720 2,290 1,740 1,570 2,090 1,530 1,840 2,300 1,360 1,630 2,040 1,270 1,520 1,910 1,190 1,790 2,140 1,090 1,640 1,960 950 1,430 1,710 760 1,140 1,820
Low resistance AH8015 MJ 0.1 – 0.3 0.1 – 0.3 Vc = 120 m/min, fz = 0.3 mm/t Vc = 120 m/min, fz = 0.3 mm/t
Hot mold steel of D.T.C materials
(DAC**, DH**, DIEVER, etc)		 40 – 55HRC First choice AH8015 MJ 50-100 0.1 – 0.3 0.1 – 0.3 0.05 1,590 640 1,420 570 1,270 760 1,020 1,160 700 930 1,020 820 1,020 910 730 910 850 680 850 800 800 960 730 730 880 640 640 770 510 510 820
for impact resistance AH8015 MH 0.1 – 0.5 0.1 – 0.5 Vc = 80 m/min, fz = 0.2mm/t Vc = 80 m/min, fz = 0.2mm/t
Cold mold steels
（SKD11 / X153CrMoV12, etc.）		 55 – 60HRC First choice AH8005 MH 50 – 70 0.05 – 0.2 0.03 – 0.1 0.03 1,190 290 1,060 250 950 340 450 870 310 420 760 300 380 680 270 340 640 260 320 600 300 360 550 230 340 480 240 280 380 200 300
Vc = 60 m/min, fz = 0.12 mm/t Vc = 60 m/min, fz = 0.1 mm/t
55 – 60HRC for impact resistance AH8015 MH 50 – 70 0.03 – 0.1 0.05 – 0.2 0.03 1,190 150 1,060 130 950 170 230 870 160 210 760 150 190 680 140 170 640 130 160 600 150 180 550 120 170 480 120 140 380 100 150
Vc = 60 m/min, fz = 0.06 mm/t Vc = 60 m/min, fz = 0.06 mm/t
  • When chips stay in the cutting zone during slotting or pocketing, use air blast to remove chips from the work area.
  • Tool overhang length must be as short as possible to avoid chatter. When the tool overhang length is long, decrease the number of revolutions and feed.
  • The above table shows the conditions for standard shank type cutters. When using long shank type cutters, the number of teeth may be different. In this case, the cutting conditions should be changed by referring to the brochure (PDF).
  • Cutting conditions are generally limited by the rigidity and power of the machine and the rigidity of the workpiece. When setting the conditions, start from half of the values of the standard cutting conditions and then increase the value gradually while making sure the machine is running normally.
TXN06 / EXN06
ISO Workpiece material Hardness Priority Grade Chip-breaker Cutting
speed		 Feed per tooth:
fz (mm/t)		 Tool dia.: DCX (mm), Number of revolutions: n (min-1), Feed speed: Vf (mm/min), Max. depth of cut: ap = 1.5 mm, Number of teeth: CICT
Vc
(m/min)		 Tool dia.: DCX (mm) Plunging ø32, CICT = 2 ø35, CICT = 2 ø40, CICT = 3 ø50 ø63 ø80 ø100, CICT = 6 ø125, CICT = 8 ø160, CICT = 10 ø200, CICT = 12
n Vf n Vf n Vf n Vf n Vf n Vf n Vf n Vf n Vf n Vf
ø32 ~ ø200 CICT = 4 CICT = 5 CICT = 4 CICT = 6 CICT = 5 CICT = 8
Carbon steels
（S45C / C45, S55C / C55, etc.)		 – 300HB First choice AH3225 MJ 100 – 300 0.5 – 1.5 0.15 1,990 3,980 1,820 3,640 1,590 4,770 1,270 5,080 6,350 1,010 4,040 6,060 800 4,000 6,400 640 3,820 510 4,080 400 3,980 320 3,820
Vc = 200 m/min, fz = 1.0 mm/t Vc = 200 m/min, fz = 1.0 mm/t
Alloy steels
（SCM440 / 42CrMo4, etc.）		 – 300HB First choice AH3225 MJ 100 – 200 0.5 – 1.5 0.15 1,990 3,980 1,820 3,640 1,590 4,770 1,270 5,080 6,350 1,010 4,040 6,060 800 4,000 6,400 640 3,820 510 4,080 400 3,980 320 3,820
Vc = 200 m/min, fz = 1.0 mm/t Vc = 200 m/min, fz = 1.0 mm/t
Prehardened steels　（NAK80, PX5, etc.） 30 – 40HRC First choice AH3225 MJ 100 – 200 0.5 – 1.2 0.15 1,490 2,380 1,360 2,180 1,190 2,860 950 3,040 3,800 760 2,430 3,650 600 2,400 3,840 480 2,290 380 2,450 300 2,390 240 2,290
Vc = 150 m/min, fz = 0.8 mm/t Vc = 150 m/min, fz = 0.8 mm/t
30 – 40HRC for wear resistance AH8015 MJ 100 – 200 0.5 – 1.5 0.15 1,490 2,980 1,360 2,720 1,190 3,570 950 3,800 4,750 760 3,040 4,560 600 3,000 4,800 480 2,880 380 3,040 300 3,000 240 2,880
Vc = 150 m/min, fz = 1.0 mm/t Vc = 150 m/min, fz = 1.0 mm/t
Stainless steels
（SUS304 / X5CrNi18-9, etc.）		 – 200HB First choice AH130 ML 80 – 150 0.3 – 0.8 0.1 1,190 1,430 1,090 1,310 950 1,710 760 1,820 2,280 610 1,470 2,200 480 1,440 2,300 380 1,380 310 1,470 240 1,430 190 1,380
Vc = 120 m/min, fz = 0.6 mm/t Vc = 120 m/min, fz = 0.6 mm/t
Precipitation hardening stainless steels (SUS630 / X5CrNiCuNb16-4) 28HRC – (H1150) First choice AH130 MS 80 – 150 0.2 – 0.5 0.1 1,190 710 1,090 650 960 860 760 910 1,140 610 730 1,100 480 720 1,150 380 680 310 740 240 720 190 680
for wear resistance AH3225 MS Vc = 120 m/min, fz = 0.3 mm/t Vc = 120 m/min, fz = 0.3 mm/t
40HRC -40HRC –
(H900)		 First choice AH3035 ML 80 – 120 0.1 – 0.3 0.1 1,000 400 910 360 800 480 640 510 640 510 410 610 400 400 640 320 380 260 420 200 400 160 380
for impact resistance AH3035 MJ Vc = 100 m/min, fz = 0.2 mm/t Vc = 100 m/min, fz = 0.2 mm/t
Gray cast irons
（FC250 / GG25 / 250, etc.）		 150 – 250HB First choice AH120 MJ 100 – 300 0.5 – 1.5 0.15 1,990 3,980 1,820 3,640 1,590 4,770 1,270 5,080 6,350 1,010 4,040 6,060 800 4,000 6,400 640 3,820 510 4,080 400 3,980 320 3,820
Vc = 200 m/min, fz = 1.0 mm/t Vc = 200 m/min, fz = 1.0 mm/t
150 – 250HB First choice AH120 MJ 80 – 200 0.5 – 1.5 0.15 1,490 2,980 1,360 2,720 1,190 3,570 950 3,800 4,750 760 3,040 4,560 600 3,000 4,800 480 2,870 380 3,060 300 2,990 240 2,870
Vc = 150 m/min, fz = 1.0 mm/t Vc = 150 m/min, fz = 1.0 mm/t
Titanium alloy
（Ti-6Al-4V, etc.）		 – 40HRC First choice AH130 ML 30 – 60 0.3 – 0.7 0.08 400 400 360 360 320 480 250 500 630 200 400 600 160 400 640 130 380 100 410 80 400 60 380
for impact resistance AH130 MJ Vc = 40 m/min, fz = 0.5 mm/t Vc = 40 m/min, fz = 0.5 mm/t
Heat-resistance alloy
（Inconel, Hasteroy, etc.）		 – 40HRC First choice AH8015 ML 20 – 50 0.1 – 0.3 0.05 300 120 270 110 240 140 190 150 190 150 120 180 120 120 190 100 120 80 120 60 120 50 120
for impact resistance AH725 ML Vc = 30 m/min, fz = 0.2 mm/t Vc = 30 m/min, fz = 0.2 mm/t
Hot mold steel
（SKD61 / X40CrMoV5-1, etc.）		 40 – 55HRC First choice AH8015 MH 80 – 150 0.1 – 0.5 0.05 1,190 710 1,090 650 950 850 760 910 1,140 610 730 1,100 480 720 1,150 380 680 310 740 240 720 190 680
Low resistance AH8015 MJ 0.1 – 0.3 Vc = 120 m/min, fz = 0.3mm/t Vc = 120 m/min, fz = 0.3mm/t
Hot mold steel of D.T.C materials
(DAC**, DH**, DIEVER, etc)		 40 – 55HRC First choice AH8015 MJ 50-100 0.1 – 0.3 0.05 800 320 730 290 640 380 510 410 510 400 320 480 320 320 510 250 300 200 320 160 320 130 310
for impact resistance AH8015 MH 0.1 – 0.5 Vc = 80 m/min, fz = 0.2mm/t Vc = 80 m/min, fz = 0.2mm/t
Cold mold steels
（SKD11 / X153CrMoV12, etc.）		 55 – 60HRC First choice AH8005 MH 50 – 70 0.05 – 0.3 0.03 600 120 550 110 480 140 380 150 190 300 120 180 240 120 190 190 110 150 120 120 120 100 120
Vc = 60 m/min, fz = 0.1 mm/t Vc = 60 m/min, fz = 0.1 mm/t
55 – 60HRC for impact resistance AH8015 MH 50 – 70 0.05 – 0.3 0.03 600 60 550 55 480 70 380 75 95 300 60 90 240 60 95 190 55 150 60 120 60 100 60
Vc = 60 m/min, fz = 0.05 mm/t Vc = 60 m/min, fz = 0.05 mm/t
  • When chips stay in the cutting zone during slotting or pocketing, use air blast to remove chips from the work area.
  • Tool overhang length must be as short as possible to avoid chatter. When the tool overhang length is long, decrease the number of revolutions and feed.
  • The above table shows the conditions for standard shank type cutters. When using long shank type cutters, the number of teeth may be different. In this case, the cutting conditions should be changed by referring to the brochure (PDF).
  • Cutting conditions are generally limited by the rigidity and power of the machine and the rigidity of the workpiece. When setting the conditions, start from half of the values of the standard cutting conditions and then increase the value gradually while making sure the machine is running normally.

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