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Products >>> Metal Cutting Tools >>> Drilling tools>>>Din1897 twist drill bits

twist drill bits din1897

Extra-short twist drills, L.H., metric sizes (DIN 1897 LN) HSS


Nominal diameter
Dh8
mm

Overall length
L
mm

Flute length
l
mm

0.70

23

4.50

0.80

24

5.00

0.90

25

5.50

1.00

26

6.00

1.10

28

7.00

1.20

30

8.00

1.30

32

9.00

1.40

32

9.00

1.50

34

10.00

1.60

34

10.00

1.70

36

11.00

1.80

36

11.00

1.90

38

12.00

2.00

38

12.00

2.10

40

13.00

2.20

40

13.00

2.30

43

14.00

2.40

43

14.00

2.60

43

14.00

2.70

46

16.00

3.00

45

16.00

3.10

49

18.00

3.30

49

18.00

3.40

52

20.00

3.70

52

20.00

3.80

55

22.00

4.20

55

22.00

4.30

58

24.00

4.70

58

24.00

4.80

66

28.00

6.00

66

28.00

6.10

70

31.00

6.70

70

31.00

6.80

74

34.00

7.50

74

34.00

7.60

79

37.00

8.50

79

37.00

8.60

84

40.00

9.50

84

40.00

9.60

89

43.00

10.50

89

43.00

10.60

95

47.00

11.80

95

47.00

11.90

102

51.00

13.20

102

51.00

13.30

107

54.00

14.00

107

54.00


Microdrills, flute-ground, reinforced shank, metric sizes
(DIN 1899 RN) HSS



Nominal diameter
Dh8
mm

Overall length
L
mm

Flute length
l
mm

0.25

25

1.80

0.27

25

1.80

0.28

25

2.00

0.30

25

2.00

0.31

25

2.40

0.33

25

2.40

0.34

25

2.80

0.36

25

2.80

0.38

25

3.10

0.40

25

3.10

0.41

25

3.50

0.44

25

3.50

0.45

25

3.80

0.49

25

3.80

0.50

25

4.00

0.54

25

4.00

0.55

25

4.30

0.59

25

4.30

0.60

25

4.50

0.64

25

4.50

0.65

25

4.80

0.69

25

4.80

0.70

25

5.00

0.74

25

5.00

0.75

25

5.50

0.79

25

5.50

0.80

25

6.00

0.99

25

6.00

1.00

25

9.00

1.45

25

9.00


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