A-A-51151 Files, Rotary, Tree Shape, Radius Nose, High Speed Steel Or Tungsten CarbideThis commercial item description CID covers the requirements for tree shape, radius nose, high speed steel or tungsten carbide type rotary files intended for general-purpose machining and deburring.

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Cutting head diameter (in.)

Teeth per circumference

Class A

coarse cut

Class B

medium cut

Class C

fine cut

Class D

extra coarse cut

1/8

6 - 8

9 - 11

12 - 15

4 - 5

3/16

9 - 11

12 - 14

15 - 20

4 - 8

1/4

10 - 13

14 - 16

17 - 21

4 - 9

5/16

11 - 16

17 - 20

21 - 26

5 - 10

3/8

12 - 17

18 - 22

23 - 30

5 - 11

7/16

13 - 18

19 - 23

24 - 31

6 - 12

1/2

14 - 20

21 - 26

27 - 35

7 - 13

5/8

17 - 22

23 - 29

30 - 40

9 - 16

3/4

18 - 24

25 - 32

33 - 44

10 - 17

7/8

19 - 25

26 - 33

34 - 45

13 - 18

1

20 - 27

28 - 41

42 - 55

15 - 19

Cutting head diameter (in.)

Teeth per circumference

Class A

coarse cut

Class B

medium cut

Class C

fine cut

Class D

extra coarse cut

1/8

8 - 11

12 - 15

16 - 20

4 - 5

3/16

10 - 12

13 - 16

17 - 24

4 - 8

1/4

12 - 15

16 - 20

21 - 26

4 - 9

5/16

13 - 16

17 - 22

23 - 30

5 - 10

3/8

13 - 18

19 - 26

27 - 38

5 - 11

7/16

15 - 20

21 - 27

28 - 36

6 - 12

1/2

16 - 22

23 - 28

29 - 39

7 - 13

5/8

18 - 25

26 - 38

39 - 47

9 - 16

3/4

19 - 28

29 - 38

39 - 49

10 - 17

7/8

22 - 29

30 - 37

38 - 55

13 - 18

1

24 - 32

33 - 43

44 - 62

15 - 19