Coolant Tungsten Carbide Rods with oil duct

Both carbide rod with straight coolant holes and helical coolant holes are supplied. Different grades are also available in stock. The internal cooling hole can provide much more efficient chip evacuation and deeper hole making capabilities. It is widely used in deep-hole drills and thread end mills.

Carbide Rod with One Central Coolant Hole

Type

D(mm)

d(mm)

Deviation of holes

position≤(mm)

L(mm)

D

Tol.

d

Tol.

L

Tol.

OD4.0×ID1.0×330

4.0

+0.2/+0.6

1.0

±0.15

0.2

330

0/+5

OD5.0×ID1.0×330

5.0

+0.2/+0.6

1.0

±0.15

0.2

330

0/+5

OD5.0×ID1.5×330

5.0

+0.2/+0.6

1.5

±0.15

0.2

330

0/+5

OD6.0×ID1.0×330

6.0

+0.2/+0.6

1.0

±0.15

0.2

330

0/+5

OD6.0×ID1.5×330

6.0

+0.2/+0.6

1.5

±0.15

0.2

330

0/+5

OD8.0×ID1.0×330

8.0

+0.2/+0.6

1.0

±0.15

0.25

330

0/+5

OD8.0×ID1.5×330

8.0

+0.2/+0.6

1.5

±0.15

0.25

330

0/+5

OD9.0×ID1.0×330

9.0

+0.3/+0.7

1.0

±0.15

0.25

330

0/+5

OD10.0×ID1.0×330

10.0

+0.3/+0.7

1.0

±0.15

0.25

330

0/+5

OD10.0×ID2.0×330

10.0

+0.3/+0.7

2.0

±0.2

0.25

330

0/+5

OD11.0×ID1.0×330

11.0

+0.3/+0.7

1.0

±0.15

0.25

330

0/+5

OD12.0×ID1.0×330

12.0

+0.3/+0.7

1.0

±0.15

0.25

330

0/+5

OD12.0×ID2.0×330

12.0

+0.3/+0.7

2.0

±0.2

0.25

330

0/+5

OD14.0×ID2.0×330

14.0

+0.3/+0.7

2.0

±0.2

0.25

330

0/+5

OD16.0×ID2.0×330

16.0

+0.4/+0.8

2.0

±0.2

0.25

330

0/+5

OD16.0×ID3.0×330

16.0

+0.4/+0.8

3.0

±0.25

0.25

330

0/+5

OD18.0×ID3.0×330

18.0

+0.4/+0.8

3.0

±0.25

0.3

330

0/+5

OD20.0×ID3.0×330

20.0

+0.4/+0.8

3.0

±0.25

0.3

330

0/+5

20.0≤Dia≤40.0 are available on request

Carbide Rod with Two Straight Coolant Holes

Type

D(mm)

TK(mm)

d(mm)

Deviation of holes position≤(mm)

L(mm)

D

Tol.(mm)

TK

Tol.

d

Tol.(mm)

L

Tol.(mm)

OD4.3×2ID0.8×1.8×330

4.3

0/+0.6

1.8

-0.4/0

0.8

±0.10

0.15

330

0/+10

OD5.3×2ID0.8×2.0×330

5.3

0/+0.6

2.0

-0.4/0

0.8

±0.10

0.20

330

0/+10

OD6.3×2ID1.0×3.0×330

6.3

0/+0.6

3.0

-0.5/0

1.0

±0.15

0.20

330

0/+10

OD7.3×2ID1.0×3.5×330

7.3

0/+0.6

3.5

-0.5/0

1.0

±0.15

0.20

330

0/+10

OD8.3×2ID1.0×4.0×330

8.3

0/+0.6

4.0

-0.6/0

1.0

±0.15

0.20

330

0/+10

OD9.3×2ID1.4×4.0×330

9.3

0/+0.6

4.0

-0.6/0

1.4

±0.15

0.20

330

0/+10

OD10.3×2ID1.4×5.0×330

10.3

0/+0.6

5.0

-0.6/0

1.4

±0.15

0.20

330

0/+10

OD11.3×2ID1.4×5.0×330

11.3

0/+0.6

5.0

-0.6/0

1.4

±0.15

0.28

330

0/+10

OD12.3×2ID1.75×6.0×330

12.3

0/+0.6

6.0

-0.6/0

1.75

±0.15

0.30

330

0/+10

OD13.3×2ID1.75×6.0×330

13.3

0/+0.6

6.0

-0.6/0

1.75

±0.15

0.34

330

0/+10

OD14.3×2ID1.75×7.0×330

14.3

0/+0.6

7.0

-0.6/0

1.75

±0.15

0.37

330

0/+10

OD15.3×2ID2.0×7.0×330

15.3

0/+0.6

7.0

-0.6/0

2.0

±0.20

0.37

330

0/+10

OD16.3×2ID2.0×8.0×330

16.3

0/+0.6

8.0

-0.6/0

2.0

±0.20

0.40

330

0/+10

OD17.3×2ID2.0×8.0×330

17.3

0/+0.8

8.0

-0.6/0

2.0

±0.20

0.47

330

0/+10

OD18.3×2ID2.0×9.0×330

18.3

0/+0.8

9.0

-0.6/0

2.0

±0.20

0.50

330

0/+10

OD19.3×2ID2.0×9.0×330

19.3

0/+0.8

9.0

-0.6/0

2.0

±0.20

0.50

330

0/+10

OD20.3×2ID2.5×10.0×330

20.3

0/+0.8

10.0

-0.8/0

2.5

±0.25

0.50

330

0/+10

20.0≤Dia≤40.0 are available on request
Carbide Rod with Two Helical Coolant Holes 30°Helical

Type

D(mm)

d(mm)

Tk

a

Pitch

D

Tolerance

d

Tolerance

TK

Tolerance

P1

P2

P3

Tolerance

OD3.3×2ID0.4×1.7×330

3.3

2.33

0.4

±0.10

1.7

0/-0.3

≤0.08

15.89

16.32

16.77

±0.23

OD4.3×2ID0.6×2.2×330

4.3

2.33

0.6

±0.15

2.2

0/-0.3

≤0.10

21.19

21.77

22.36

±0.31

OD5.3×2ID0.7×2.6×330

5.3

2.67

0.7

±0.15

2.6

0/-0.4

≤0.13

26.49

27.21

27.95

±0.38

OD6.3×2ID0.7×2.6×330

6.3

2.5

0.7

±0.15

2.6

0/-0.4

≤0.15

31.79

32.65

33.54

±0.46

OD6.3×2ID1.0×2.6×330

6.3

2.5

1.0

±0.15

2.6

0/-0.4

≤0.15

31.79

32.65

33.54

±0.46

OD7.3×2ID1.0×3.7×330

7.3

2.5

1.0

±0.15

3.7

0/-0.4

≤0.15

37.09

38.09

39.13

±0.54

OD8.3×2ID1.0×4.0×330

8.3

2.5

1.0

±0.15

4.0

0/-0.4

≤0.15

42.38

43.53

44.73

±0.62

OD8.3×2ID1.0×3.5×330

8.3

2.5

1.0

±0.15

3.5

0/-0.4

≤0.15

42.38

43.53

44.73

±0.62

OD8.3×2ID0.6×2.8×330

8.3

2.5

0.6

±0.15

2.8

0/-0.4

≤0.15

42.38

43.53

44.73

±0.62

OD9.3×2ID1.4×4.8×330

9.3

2.5

1.4

±0.15

4.8

0/-0.6

≤0.20

47.68

48.97

50.32

±0.69

OD10.3×2ID1.4×4.8×330

10.3

2.75

1.4

±0.15

4.8

0/-0.6

≤0.20

52.98

54.41

55.91

±0.77

OD10.3×2ID0.7×2.6×330

10.3

2.75

0.7

±0.15

2.6

0/-0.4

≤0.20

52.98

54.41

55.91

±0.77

OD10.3×2ID1.0×3.0×330

10.3

2.75

1.0

±0.15

3.0

0/-0.4

≤0.20

52.98

54.41

55.91

±0.77

OD10.3×2ID1.4×5.0×330

10.3

2.75

1.4

±0.15

5.0

0/-0.6

≤0.20

52.98

54.41

55.91

±0.77

OD11.3×2ID1.4×5.3×330

11.3

2.75

1.4

±0.15

5.3

0/-0.8

≤0.28

58.28

59.86

61.5

±0.85

OD12.3×2ID1.4×6.25×330

12.3

2.75

1.4

±0.15

6.25

0/-0.8

≤0.30

63.58

65.3

67.09

±0.92

OD12.3×2ID1.75×6.0×330

12.3

2.75

1.75

±0.20

6.0

0/-0.8

≤0.30

63.58

65.3

67.09

±0.92

OD13.3×2ID1.75×6.5×330

13.3

3.0

1.75

±0.20

6.5

0/-0.8

≤0.34

68.87

70.74

72.68

±1.00

OD14.3×2ID1.75×7.1×330

14.3

3.5

1.75

±0.20

7.1

0/-0.8

≤0.37

74.17

76.18

78.27

±1.08

OD14.3×2ID0.8×3.5×330

14.3

3.5

0.8

±0.15

3.5

0/-0.4

≤0.37

74.17

76.18

78.27

±1.08

OD14.3×2ID1.4×4.5×330

14.3

3.5

1.4

±0.15

4.5

0/-0.6

≤0.37

74.17

76.18

78.27

±1.08

OD15.3×2ID1.75×7.7×330

15.3

3.5

1.75

±0.20

7.7

0/-0.8

≤0.40

79.47

81.62

83.86

±1.15

OD16.3×2ID1.75×8.3×330

16.3

3.5

1.75

±0.20

8.3

0/-0.8

≤0.40

84.77

87.06

89.45

±1.23

OD16.3×2ID2.0×8.0×330

16.3

3.5

2.0

±0.20

8.0

0/-0.6

≤0.40

84.77

87.06

89.45

±1.23

OD17.3×2ID1.75×8.9×330

17.3

3.5

1.75

±0.20

8.9

0/-0.8

≤0.47

90.07

92.5

95.04

±1.31

OD18.3×2ID2.0×9.55×330

18.3

3.5

2.0

±0.25

9.55

0/-0.8

≤0.50

95.36

97.95

100.63

±1.38

OD18.3×2ID1.75×9.15×330

18.3

3.5

1.75

±0.20

9.15

0/-0.8

≤0.50

95.36

97.95

100.63

±1.38

OD19.3×2ID2.0×10×330

19.3

3.5

2.0

±0.25

10.0

0/-0.8

≤0.50

100.66

103.39

106.22

±1.46

OD20.3×2ID2.0×10.4×330

20.3

3.5

2.0

±0.25

10.4

0/-1

≤0.50

105.96

108.83

111.81

±1.54

NoteD<18.3, L>100, L Tolerance0~+7; L<100, L Tolerance0~+5.  D ≥ 18.3, L Tolerance+3~+10.

Carbide Rod with Two Helical Coolant Holes 40°Helical

Type

D(mm)

d(mm)

TK(mm)

a

Ptich

D

Tol.

d

Tol.

TK

Tol.

P 1

P 2

P 3

Tol.

OD6.3×2ID0.6×1.9×LC

6.3

2.5

0.6

±0.15

1.9

0/-0.4

≤0.15

18.20

18.85

19.52

±0.34

OD6.3×2ID0.5×2.2×LC

6.3

2.5

0.5

±0.15

2.2

0/-0.4

≤0.15

21.68

22.46

23.28

±0.42

OD8.3×2ID0.65×2.7×LC

8.3

2.5

0.65

±0.15

2.7

0/-0.6

≤0.15

28.91

29.95

31.04

±0.56

OD10.3×2ID0.8×3.5×LC

10.3

2.75

0.8

±0.15

3.5

0/-0.8

≤0.20

36.14

37.44

38.8

±0.70

OD12.3×2ID0.9×4.2×LC

12.3

2.75

0.9

±0.15

4.2

0/-0.8

≤0.30

43.37

44.93

46.55

±0.84

OD14.3×2ID1.0×4.7×LC

14.3

3.5

1.0

±0.20

4.7

0/-0.8

≤0.37

50.6

52.42

54.31

±0.98

OD16.3×2ID1.2×5.5×LC

16.3

3.5

1.2

±0.20

5.5

0/-0.8

≤0.40

57.82

59.9

62.07

±1.12

OD18.3×2ID1.4×6.3×LC

18.3

3.5

1.4

±0.20

6.3

0/-0.8

≤0.50

65.05

67.39

69.83

±1.26

OD20.3×2ID1.5×7.1×LC

20.3

3.5

1.5

±0.20

7.1

0/-1.0

≤0.50

72.28

74.88

77.59

±1.40

Note: D<18.3, L>100, L Tolerance0~+7, L<100, L Tolerance0~+5, D≥18.3, Length Tolerance+3~+10
Carbide Rod with Three Helical Coolant Holes 30° Helical

Type

D(mm)

d(mm)

TK

a

Pitch

D

Tol.

d

Tol.

TK

Tol.

P 1

P 2

P 3

Tol.

OD6.3×3ID0.5×2.9×LB

6.3

2.5

0.5

±0.15

2.9

0/-0.4

≤0.15

31.79

32.65

33.54

±0.46

OD8.3×3ID0.7×4.0×LB

8.3

2.5

0.7

±0.15

4

0/-0.4

≤0.15

42.38

43.53

44.73

±0.62

OD9.3×3ID0.7×4.0×LB

9.3

2.5

0.85

±0.15

5.1

0/-0.5

≤0.20

47.68

48.97

50.32

±0.69

OD10.3×3ID0.85×5.1×LB

10.3

2.75

0.85

±0.15

5.1

0/-0.4

≤0.20

52.98

54.41

55.91

±0.77

BФ12.3×3Ф1.1×6.3×LB

12.3

2.75

1.1

±0.15

6.3

0/-0.6

≤0.30

63.58

65.3

67.09

±0.92

OD14.3×3ID1.4×7.3×LB

14.3

3.5

1.4

±0.20

7.3

0/-0.8

≤0.40

74.17

76.18

78.27

±1.08

OD15.3×3ID1.4×7.3×LB

15.3

3.5

1.4

±0.20

7.8

0/-0.8

≤0.40

79.47

81.62

83.86

±1.15

OD16.3×3ID1.6×8.3×LB

16.3

3.5

1.6

±0.20

8.3

0/-0.8

≤0.40

84.77

87.06

89.45

±1.23

OD18.3×3ID1.7×9.5×LB

18.3

3.5

1.7

±0.20

9.5

0/-0.8

≤0.50

95.36

97.95

100.63

±1.38

OD20.3×3ID1.9×10.2×LB

20.3

3.5

1.9

±0.25

10.2

0/-0.8

≤0.50

105.96

108.83

111.81

±1.54

Note: D<18.3, L>100, L Tolerance0~+7; L<100, L Tolerance0~+5. D≥18.3, L Tolerance+3~+10.
Carbide Rod with Three Helical Coolant Holes 40°Helical

Type

D(mm)

d(mm)

Tk

a

Pitch

D

Tol.

d

Tolerance

TK

Tol.

P1

P2

P3

Tol.

OD6.3×3ID0.5×2.9×LB

6.3

2.5

0.5

±0.15

2.2

0/-0.4

≤0.15

21.68

22.46

23.28

±0.42

OD8.3×3ID0.7×4.0×LB

8.3

2.5

0.65

±0.15

2.7

0/-0.4

≤0.15

28.91

29.95

31.04

±0.56

OD10.3×3ID0.85×5.1×LB

10.3

2.75

0.8

±0.15

3.5

0/-0.4

≤0.20

36.14

37.44

38.8

±0.70

BФ12.3×3Ф1.1×6.3×LB

12.3

2.75

0.9

±0.15

4.2

0/-0.6

≤0.30

43.37

44.93

46.55

±0.84

OD14.3×3ID1.4×7.3×LB

14.3

3.5

1.0

±0.20

4.7

0/-0.6

≤0.37

50.60

52.42

54.31

±0.98

OD16.3×3ID1.6×8.3×LB

16.3

3.5

1.2

±0.20

5.5

0/-0.8

≤0.40

57.82

59.90

62.07

±1.12

OD18.3×3ID1.7×9.5×LB

18.3

3.5

1.4

±0.20

6.3

0/-0.8

≤0.50

65.05

67.39

69.83

±1.26

OD20.3×3ID1.9×10.2×LB

20.3

3.5

1.5

±0.20

7.1

0/-0.8

≤0.50

72.28

74.88

77.59

±1.40

Note:  D<18.3, L>100, L Tolerance0~+7, L<100, L Tolerance0~+5, D≥18.3, Length Tolerance+3~+10

Sintering
HIP.

The advanced computer-controlled HIP furnaces are applied to provide more pressure during the sintering process in order to get denser structure.

Powder
Excellent.

Thanks to our deep cooperation with Germany H.C.Starck, we use the best powder for carbide rod in the world for all our standard grades for carbide rod manufacturing.

Cooling
Internal.

The internal cooling hole can provide much more efficient chip evacuation and deeper hole making capabilities. We supply not only straight coolant but also spiral coolant carbide rod.

OEM Custom Service

We can develop grades as per your requirement and make the same shape as your drawing. Laser marking and neutral package are also available for your benefits.

Grade

Grade Chart
grade MT09UMT10SMT12SMT25SMT06UMT20.8
ISO range K10-K20K20-K40K20-K40K20-K40K05-K10K40-K50
WC+other carbide%9190888893.585
Co%91012126.515
WC grain sizeμm0.40.80.60.40.60.8
densityg/㎝³14.514.4214.1214.114.8513.95
hardnessHv30189016001580175018901350
HRA 93.591.591.292.593.589.5
transverse rupture strengthN/mm²380041004200440037003800
kpsi 590609638540551551
fracture toughnessMpa.m½10.214.214.713.510.117.5
young’s moduluskpsi867808536080860800009100079086
compressive strengthkpsi11451015101011091156957
The Application
Grade
Properties and applications
MT09U 
Ultra-fine grain WC with 9%Co Very high wear resistance and excellent deformation resistance High cutting speed milling, finishing For use on hardened steel, plastics, fibre reinforced materials, HRC55-65
MT10S 
Ultra-fine grain WC with 10%Co  Very high wear resistance and excellent deformation resistance High cutting speed milling&drilling For general usage and suitable for all kinds of material belowHRC45
MT12S 
Submicron grain WC with 12%Co High toughness and wear resistance Specially designed for machining stainless steel For use on stainless steel, nickel-based alloys, titanium alloy and special alloy
MT25S 
Ultra-fine grain WC with 12%Co Very high toughness and high wear resistance Suitable for finishing processing and roughing of steels with hardness between 45 and 55HRC steels for surface treatments, nickel and nickel alloys
MT06U 
Submicron grain WC with 6% Co Very high wear resistance High cutting speed For drilling and milling of plastic composites, PCB, ceramics, woods and MDF
MT20.8 
Submicron grain WC with 15%Co High strength and toughness High-speed punching For use on solid carbide punches