블루텍

와이지원

한국OSG

일반드릴

코발트드릴

초경드릴

테이퍼드릴

1.0

1

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

3

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4.0

4

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5.0

5

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

5.9

6.0

6

6.1

6.2

6.3

6.4

6.5

6.6

6.7

6.8

6.9

7

7.0

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

8

8.0

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

8.9

9.0

9

9.1

9.2

9.3

9.4

9.5

9.6

9.7

9.8

9.9

10

10.0

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

10.9

11

11.0

11.1

11.2

11.3

11.4

11.5

11.6

11.7

11.8

11.9

12.0

12

12.1

12.2

12.3

12.4

12.5

12.6

12.7

12.8

12.9

13.0

13

13.1

13.2

13.3

13.5

13.7

13.8

14

14.0

14.1

14.2

14.3

14.4

14.5

14.6

14.7

15

15.5

16.0

16

16.5

17

17.5

18

18.5

19

19.5

20