型号

莫氏号

钻孔范围

攻丝范围

钻孔套筒

攻丝套筒

J4320/2

2

φ1-φ23

m5-m20

D4 1#2#

M5,6-8,10,12,16,20,18-20

J4320/3

3

J4320/4

4

J4330/4

4

φ1-φ31.5

m6-m30

D4 1#2#3#

M6-8,10,12,16,18-20,24,27-30

J4330/5

5

J4342/5

5

φ1-φ50

m16-m42

1#2#3#4#

M16,18-20,24,27-30,36,39-42

J4342/6

6