Specification:Precision:0.005mmER11-ER11: Outer thread M14*0.75, Inner thread M14*0.75ER11-ER16: Outer thread M19*1, Inner thread M14*0.75ER16-ER16:Outer thread M19*1, Inner thread M19*1ER16-ER20:Outer thread M25*1.5, Inner thread M19*1ER20-ER20:Outer thread M25*1.5, Inner thread M25*1.5ER20-ER25:Outer thread M32*1.5, Inner thread M25*1.5ER25-ER25:Outer thread M32*1.5, Inner thread M32*1.5ER25-ER32:Outer thread M40*1.5, Inner thread M32*1.5ER32-ER32:Outer thread M40*1.5, Inner thread M40*1.5==========Certification : noneOrigin : Mainland China Precision:0.005mm ER11-ER11: Outer thread M14*0.75, Inner thread M14*0.75,ER11-ER16: Outer thread M19*1, Inner thread M14*0.75 ER16-ER16:Outer thread M19*1, Inner thread M19*1,ER16-ER20:Outer thread M25*1.5, Inner thread M19*1,ER20-ER20:Outer thread M25*1.5, Inner thread M25*1.5 ER20-ER25:Outer thread M32*1.5, Inner thread M25*1.5 ER25-ER25:Outer thread M32*1.5, Inner thread M32*1.5,ER25-ER32:Outer thread M40*1.5, Inner thread M32*1.5,ER32-ER32:Outer thread M40*1.5, Inner thread M40*1.5 Brand Name HXSMBM Unit Count 1.0 Count Manufacturer HXSMBM Model Number HXSMBM Manufacturer Part Number HXSMBM