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QF0011高速钢全磨制螺旋槽中心钻
HSS CENTER DRILLS
 
A(型)PLAIN THPE METRI CSYSTEM
 

刃径d

柄径d 1

全长L

刃长l

1.0

3.15

31.5

1.9

1.25

3.15

3.15

2.2

1.6

4

35.5

2.8

2.0

5

4

3.3

2.5

6.3

45

4.1

3.15

8

50

4.9

4.0

10

56

6.2

5.0

12.5

63

7.5

6.3

16

71

9.2

8.0

20

80

11.5

10.0

25

100

14.5

 
A(型)PLAIN THPE INCH SIZE
 

Size
Design
ation

柄径d 1
刃径d
刃长I

全长L

inch

mm

inch

mm

inch

mm

inch

mm

00

1/8

3.18

0.025

0.64

1/8

3.18

1-1/8

29

0

1/8

3.18

1/32

0.79

1/8

3.18

1-1/8

29

1

1/8

3.18

3/64

1.19

1/8

3.18

1-1/8

32

2

3/16

4.76

5/64

1.98

3/16

4.76

1-7/8

48

3

1/4

6.35

7/64

2.78

1/4

6.35

,,

51

4

5/16

7.94

1/8

3.18

5/16

7.94

2-1/8

54

5

7/16

11.11

3/16

4.76

7/16

11.11

2-3/4

70

6

1/2

12.70

7/32

5.56

1/2

12.70

,,

76

7

5/8

15.88

1/4

6.35

5/8

15.88

3-1/4

83

8

3/4

19.05

5/16

7.94

3/4

19.05

3-1/2

89

 
QF0011A全磨中心钻
HSS from R center drill 60B with radius ground
 
 

Order
No.

Dia.

Shank
Dia

L1
Oal.

L2
Flute

17903210

1.0

3.2

31.5

1.9

17903213

1.3

3.2

31.5

2.2

17904016

1.6

4.0

35.5

2.8

17905020

2.0

5.0

40.0

3.3

17906325

2.5

6.3

45.0

4.1

17908032

3.2

8.0

49.0

4.9

17910040

4.0

10.0

56.0

6.2

17912550

5.0

12.5

63.0

7.5

17916063

6.3

16.0

71.0

9.2

 
 
 
B(型)BELL TYPE METRIC SYSTEM
 

刃径d

柄径d1

柄径d2

全长L

刃长l

1.0

4

2.12

35.5

1.9

1.25

5

2.65

40

2.2

1.6

6.3

3.35

45

2.8

2.0

8

4.25

50

3.3

2.5

10

5.3

56

4.1

3.15

11.2

6.7

60

4.9

4.0

14

8.5

67

6.2

5.0

18

10.6

 75

7.5

6.3

20

13.2

 80

9.2

8.0

25

17

100

11.5

10.0

31.5

21.2

125

14.5

 
B(型)BELL TYPE INCH SIZE
 

Size
Design
ation

柄径d 1

刃径d

锥长d2
刃长I

全长L

inch

mm

inch

mm

inch

mm

inch

mm

inch

mm

11

1/8

3.18

3~64

1.19

0.10

2.5

3/64

1.19

1-1/4

32

12

3/16

4.76

1/16

1.59

0.15

3.8

1/16

1.59

1-7/8

48

13

1/4

6.35

3/32

2.38

0.20

5.1

3/32

2.38

,,

51

14

5/16

7.94

7/64

2.78

0.25

6.4

7~64

2.78

2-1/8

54

15

7/16

11.11

5/32

3.97

0.35

8.1

5/32

3.97

2-3/4

70

16

1/2

12.70

3/16

4.76

0.40

10.2

3/16

4.76

,,

76

17

5/8

15.88

7/32

5.56

0.50

12.7

7/32

5.56

3-1/4

83

18

3/4

19.05

1/4

6.35

0.60

15.2

1/4

6.35

3-1/2

89