材质采用抗震性优越的镍鍩钼合金刚
孔径公差H5
具体规格有：
C8-ER8M-55
C10-ER8M-100
C10-ER8M-150
C10-ER8M-180
C12-ER8M-55
C12-ER8M-120
C12-ER8M-180
C12-ER11M-80
C16-ER11M-50
C16-ER11M-100
C16-ER11M-140
C16-ER16M-80
C20-ER16M-100
C20-ER16M-140
C20-ER16M-160
C20-ER20M-60
C20-ER20M-100
C20-ER20M-120
C20-ER20M-150
C20-ER20M-180
C25-ER20M-140
C20-ER25M-100
