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Radius End Mills (Carbide)（R Precision：0～-20）

Radius End Mills (Carbide) products in the Cutting Tools category. Specified by R Precision 0～-20. There are around 4 items of Radius End Mills (Carbide) products available and the specifications can easily be compared. A tool for drilling and cutting workpieces that can be used with a wide range of materials. Radius End Mills (Carbide) offers a wide selection of products, on time delivery, free shipping and no minimum order quantity with a consulting team available.

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Brand	(0) (0) 7 LEADERS (4) ATOM (0) DIJET (0) GUHRING (0) KYOWA SEIKO (0) NACHI(FUJIKOSHI) (0) NS TOOL (0) OKAZAKI SEIKO (0) OSG (0) SANDVIK (0) SANKO MFG (0) TAIYO-TOOL (0) THE CUT (0) UNION TOOL (0) WATERMILLS (0)
CAD	2D 3D
Days to Ship	All Same day 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less Others

4 items

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: 30; 45; 60

You can add up to 6 items per a category to the compare list. Compare

Carbide 2-Flute Corner Radius Medium End Mill 30° B257X

7 LEADERS

[Features]
· Also use the 2-flute medium shank radius end mill to prevent tip chipping.
· Enables radius cutting deep into the work materials.
· Nanoparticle multilayer coating.
· Excellent lubricity and abrasion resistance.
· Exhibits its strength in general cutting processes.

Blade diameter (D)(φ)	R Size(mm)	Blade length (ℓ)(mm)	Number of flutes(sheet)	Overall Length (L)(mm)	work material	Shank diameter (d)(mm)	Underneck length (ℓ1)(mm)	Machining Application	Coating	Type	Torsion Angle (θ)	R Precision(μm)
3 ～ 20	0.1 ～ 4	10 ～ 55	2	50 ～ 160	general steel[◎] / Quenched and tempered steel[○] / High Hardness Steel-HRC55[◎] / Stainless Steel[○] / Cast Iron[○] / Aluminum[○] / Titanium[○] / Copper[○] / Graphite[○] / Resin[○]	3 ～ 20	-	Plane / Side / Curved surface	-	radius	Standard torsion (30-40°)	0～-20

From: ₹ 2,426.95
Days to Ship: 7 Day(s) or more

7 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

Carbide 4-Flute Variable Split Corner Radius Short End Mill 30° B256X

7 LEADERS

[Features]
· Also use the 4-flute short radius end mill to prevent tip chipping.
· Nanoparticle multilayer coating.
· Excellent lubricity and abrasion resistance.
· Exhibits its strength in general cutting processes.
· It supports high-speed side cutting.

Blade diameter (D)(φ)	R Size(mm)	Blade length (ℓ)(mm)	Number of flutes(sheet)	Overall Length (L)(mm)	work material	Shank diameter (d)(mm)	Underneck length (ℓ1)(mm)	Machining Application	Coating	Type	Torsion Angle (θ)	R Precision(μm)
1 ～ 20	0.1 ～ 4	3 ～ 38	4	50 ～ 100	general steel[◎] / Quenched and tempered steel[○] / High Hardness Steel-HRC55[◎] / Stainless Steel[○] / Cast Iron[○] / Titanium[○] / Copper[○] / Resin[○]	4 ～ 20	-	Plane / Side / Curved surface	-	radius	Standard torsion (30-40°)	0～-20

From: ₹ 2,426.95
Days to Ship: 5 Day(s) or more

5 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

Carbide 4-Flute Variable Split Corner Radius Medium End Mill 30° B258X

7 LEADERS

[Features]
· Also use the 4-flute medium shank radius end mill to prevent tip chipping.
· Enables radius cutting deep into the work materials.
· Nanoparticle multilayer coating.
· Excellent lubricity and abrasion resistance.
· Exhibits its strength in general cutting processes.
· It supports high-speed side cutting.

Blade diameter (D)(φ)	R Size(mm)	Blade length (ℓ)(mm)	Number of flutes(sheet)	Overall Length (L)(mm)	work material	Shank diameter (d)(mm)	Underneck length (ℓ1)(mm)	Machining Application	Coating	Type	Torsion Angle (θ)	R Precision(μm)
3 ～ 20	0.1 ～ 4	10 ～ 55	4	50 ～ 160	general steel[◎] / Quenched and tempered steel[○] / High Hardness Steel-HRC55[◎] / Stainless Steel[○] / Cast Iron[○] / Titanium[○] / Copper[○] / Graphite[○] / Resin[○]	3 ～ 20	-	Plane / Side / Curved surface	-	radius	Standard torsion (30-40°)	0～-20

From: ₹ 2,426.95
Days to Ship: 7 Day(s) or more

7 Day(s) or more

You can add up to 6 items per a category to the compare list. Compare

Carbide 2-Piece Flute Corner Radius Short End Mill 30° B255X

7 LEADERS

[Features]
· Also use the 2-flute short radius end mill to prevent tip chipping.
· Nanoparticle Multilayer Coating
· Excellent lubricity and abrasion resistance.
· Exhibits its strength in general cutting processes.

Blade diameter (D)(φ)	R Size(mm)	Blade length (ℓ)(mm)	Number of flutes(sheet)	Overall Length (L)(mm)	work material	Shank diameter (d)(mm)	Underneck length (ℓ1)(mm)	Machining Application	Coating	Type	Torsion Angle (θ)	R Precision(μm)
1 ～ 20	0.1 ～ 4	3 ～ 38	2	50 ～ 100	general steel[◎] / Quenched and tempered steel[○] / High Hardness Steel-HRC55[◎] / Stainless Steel[○] / Cast Iron[○] / Aluminum[○] / Titanium[○] / Copper[○] / Resin[○]	4 ～ 20	-	Plane / Side / Curved surface	-	radius	Standard torsion (30-40°)	0～-20

From: ₹ 2,426.95
Days to Ship: 7 Day(s) or more

7 Day(s) or more


Brand
Product Series
From
Days to Ship
Blade diameter (D)(φ)
R Size(mm)
Blade length (ℓ)(mm)
Number of flutes(sheet)
Overall Length (L)(mm)
work material
Shank diameter (d)(mm)
Underneck length (ℓ1)(mm)
Machining Application
Coating
Type
Torsion Angle (θ)
R Precision(μm)

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	7 LEADERS	7 LEADERS	7 LEADERS	7 LEADERS
Product Series	Carbide 2-Flute Corner Radius Medium End Mill 30° B257X	Carbide 4-Flute Variable Split Corner Radius Short End Mill 30° B256X	Carbide 4-Flute Variable Split Corner Radius Medium End Mill 30° B258X	Carbide 2-Piece Flute Corner Radius Short End Mill 30° B255X
From	₹ 2,426.95	₹ 2,426.95	₹ 2,426.95	₹ 2,426.95
Days to Ship	7 Day(s) or more	5 Day(s) or more	7 Day(s) or more	7 Day(s) or more
Blade diameter (D)(φ)	3 ～ 20	1 ～ 20	3 ～ 20	1 ～ 20
R Size(mm)	0.1 ～ 4	0.1 ～ 4	0.1 ～ 4	0.1 ～ 4
Blade length (ℓ)(mm)	10 ～ 55	3 ～ 38	10 ～ 55	3 ～ 38
Number of flutes(sheet)	2	4	4	2
Overall Length (L)(mm)	50 ～ 160	50 ～ 100	50 ～ 160	50 ～ 100
work material	general steel[◎] / Quenched and tempered steel[○] / High Hardness Steel-HRC55[◎] / Stainless Steel[○] / Cast Iron[○] / Aluminum[○] / Titanium[○] / Copper[○] / Graphite[○] / Resin[○]	general steel[◎] / Quenched and tempered steel[○] / High Hardness Steel-HRC55[◎] / Stainless Steel[○] / Cast Iron[○] / Titanium[○] / Copper[○] / Resin[○]	general steel[◎] / Quenched and tempered steel[○] / High Hardness Steel-HRC55[◎] / Stainless Steel[○] / Cast Iron[○] / Titanium[○] / Copper[○] / Graphite[○] / Resin[○]	general steel[◎] / Quenched and tempered steel[○] / High Hardness Steel-HRC55[◎] / Stainless Steel[○] / Cast Iron[○] / Aluminum[○] / Titanium[○] / Copper[○] / Resin[○]
Shank diameter (d)(mm)	3 ～ 20	4 ～ 20	3 ～ 20	4 ～ 20
Underneck length (ℓ1)(mm)	-	-	-	-
Machining Application	Plane / Side / Curved surface	Plane / Side / Curved surface	Plane / Side / Curved surface	Plane / Side / Curved surface
Coating	-	-	-	-
Type	radius	radius	radius	radius
Torsion Angle (θ)	Standard torsion (30-40°)	Standard torsion (30-40°)	Standard torsion (30-40°)	Standard torsion (30-40°)
R Precision(μm)	0～-20	0～-20	0～-20	0～-20

Configure

Specification/Dimensions

Blade diameter (D)(φ)
0

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.2

1.4

1.5

1.6

1.8

2

2.5

2.8

3

3.5

4

4.5

5

5.5

6

7

8

9

10

11

12

13

14

16

17

18

20

22

25
Drawing

Clear

R Size(mm)
R0

0.05

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.75

0.76

0.8

0.813

0.9

1

R1

1.1

1.2

1.219

1.3

1.4

1.5

R1.5

1.6

1.625

1.7

1.8

1.9

2

R2

2.031

2.1

2.2

2.3

2.4

2.438

2.465

2.5

R2.5

2.6

2.607

2.7

2.8

2.9

3

R3

3.05

3.2

3.5

4

R4

5

R5

6

R6

6.35

6.5

8
Drawing

Clear

Blade length (ℓ)(mm)
0.16

0.24

0.25

0.28

0.3

0.32

0.4

0.5

0.6

0.64

0.7

0.75

0.8

0.9

1

1.2

1.5

1.6

1.8

2

2.1

2.25

2.3

2.4

2.5

2.7

3

3.2

3.5

3.7

4

4.5

5

5.25

5.5

5.6

6

7

7.5

8

8.25

8.4

9

10

10.5

11

12

13

13.5

14

15

16

16.5

17

18

19

19.5

20

21

22

24

25

25.5

26

27

28

30

32

33

34

35

36

37.5

38

40

45

48

50

55

56

60

75
Drawing

Clear

Number of flutes(sheet)
2

3

4

5

6

8
Drawing

Clear

Overall Length (L)(mm)
32

34

35

39

40

45

49

50

51

52

55

57

58

60

62

63

65

68

70

72

74

75

80

83

85

86

88.90

90

92

95

100

104

105

110

115

120

121

125

130

135

140

150

160

170

180

185

200

220

230
Drawing

Clear

work material
- general steel
- Quenched and tempered steel
- High Hardness Steel-HRC55
- High Hardness Steel-HRC60
- High Hardness Steel-HRC65
- Stainless Steel
- Cast Iron
- Aluminum
- Titanium
- Copper
- Graphite
- Resin
Details

Clear

Shank diameter (d)(mm)
3

4

5

5.8

6

7.8

8

9.8

10

11

12

13

14

15

16

17

18

20

25
Drawing

Clear

Underneck length (ℓ1)(mm)
1

1.5

1.8

2

2.4

2.5

3

3.5

3.8

4

4.5

5

6

7

7.5

8

9

10

12

12.5

13

14

15

16

18

19

20

21

22

24

25

27

28

29

30

32

34

35

36

38

40

42

44

45

48

50

54

55

56

60

65

66

70

72

75

80

82

84

85

90

95

100

105

108

120

-
Drawing

Clear

Machining Application
- Plane
- Side
- Curved surface
- Groove
- Plunging (Z feed)
- Inclined Cuts
Images

Clear

Coating
- For High Hardness (Silicon Group)
- TiAlN
- For General Steels (AlCrN, etc.)
- TiCN
- DLC
- Dia Coat
- Non-Coated
- AlTiN
- Other
Details

Clear

Type
- radius
- High-Feed Radius
- Long-Neck Radius
- Tapered neck radius
Clear

Torsion Angle (θ)
- No torsion
- Weak torsion (15 to 25˚)
- Standard torsion (30-40°)
- Powerful Torsion (45°-60°)
- Other
- 45°
Clear

R Precision(μm)
-0.032～-0.059

-0.025～-0.047

-0.020～-0.038

-0.014～-0.028

-0.005 to 0.005

0～-20

0～-0.05

0～-0.030

0～-0.015

0～+0.04

±0.005

±0.01

±0.015

0.015～-0.015

±0.02

0.02～-0.02

0.025～-0.025

±0.03

±0.05

10
Drawing

Clear