Guinea Tungsten steel drill bit (internal coolant)

● Solid carbide substrate, with high-performance coating technology, can greatly improve production efficiency; ● Unique edge treatment technology, strengthen the edge strength, improve the wear resistance and stability of the tool.

Product Description

Type No. Diameter Flute length Overall length Shank Dia Flutes
D Lc L d F

NHKA030

3

20

62

4

2

NHKA031

3.1

20

62

4

2

NHKA032

3.2

20

62

4

2

NHKA033

3.3

20

62

4

2

NHKA034

3.4

20

62

4

2

NHKA035

3.5

20

62

4

2

NHKA036

3.6

20

62

4

2

NHKA037

3.7

20

62

4

2

NHKA038

3.8

24

66

4

2

NHKA039

3.9

24

66

4

2

NHKA040

4

24

66

4

2

NHKA041

4.1

24

66

6

2

NHKA042

4.2

24

66

6

2

NHKA043

4.3

24

66

6

2

NHKA044

4.4

24

66

6

2

NHKA045

4.5

24

66

6

2

NHKA046

4.6

24

66

6

2

NHKA047

4.7

24

66

6

2

NHKA048

4.8

28

66

6

2

NHKA049

4.9

28

66

6

2

NHKA050

5

28

66

6

2

NHKA051

5.1

28

66

6

2

NHKA052

5.2

28

66

6

2

NHKA053

5.3

28

66

6

2

NHKA054

5.4

28

66

6

2

NHKA055

5.5

28

66

6

2

NHKA056

5.6

28

66

6

2

NHKA057

5.7

28

66

6

2

NHKA058

5.8

28

66

6

2

NHKA059

5.9

28

66

6

2

NHKA060

6

28

66

6

2

NHKA061

6.1

34

79

8

2

NHKA062

6.2

34

79

8

2

NHKA063

6.3

34

79

8

2

NHKA064

6.4

34

79

8

2

NHKA065

6.5

34

79

8

2

NHKA066

6.6

34

79

8

2

NHKA067

6.7

34

79

8

2

NHKA068

6.8

34

79

8

2

NHKA069

6.9

34

79

8

2

NHKA070

7

34

79

8

2

NHKA071

7.1

41

79

8

2

NHKA072

7.2

41

79

8

2

NHKA073

7.3

41

79

8

2

NHKA074

7.4

41

79

8

2

NHKA075

7.5

41

79

8

2

NHKA076

7.6

41

79

8

2

NHKA077

7.7

41

79

8

2

NHKA078

7.8

41

79

8

2

NHKA079

7.9

41

79

8

2

NHKA080

8

41

79

8

2

NHKA081

8.1

47

89

10

2

NHKA082

8.2

47

89

10

2

NHKA083

8.3

47

89

10

2

NHKA084

8.4

47

89

10

2

NHKA085

8.5

47

89

10

2

NHKA086

8.6

47

89

10

2

NHKA087

8.7

47

89

10

2

NHKA088

8.8

47

89

10

2

NHKA089

8.9

47

89

10

2

 

Cast iron,Carbon steel Alloy steel,Tool steel Tempered steel
Prehardened steel
Heat-treated steel Heat-treated steel Stainless steel Aluminum alloy Titanium alloy Copper alloy

(~22HRC)

(25~35HRC)

(35~45HRC)

(45~55HRC)

(55~65HRC)

(~30HRC)

(~150HB)

(~32HRC)

C11000

S50C/HT250/Q235

P20/H13/D2

NAK80/718H/FDAC

SKD61/1.2343ESR

SKD11/SKH51

SUS304/316/316L

5052/6061/7075

Ti-6Al-4V

B152C11000

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