無屑美粗牙UNC

牙數

下料孔徑

NO.1

64

1.7

NO.2

56

2

NO.3

48

2.25

NO.4

40

2.55

NO.5

40

2.9

NO.6

32

3.15

NO.8

32

3.8

NO.10

24

4.35

NO.12

24

5

1/4

20

5.75

5/16

18

7.3

3/8

16

8.8

7/16

14

10.3

1/2

13

11.8