Features 1、Carbon steel material has strong stability, is not easy to rust, and has a long service life. 2、High accuracy makes the boring head compatible with high accurate works. 3、The model is universal suitable for nearly all kinds of lathe. 4、Complete set with auxiliary installation tools to help you with installation. 5、Delicate and practical, high hardness, firm and strong. Specification Features: Carbon steel material has strong stability, is not easy to rust, and has a long service life. High accuracy makes the boring head compatible with high accurate works. The model is universal suitable for nearly all kinds of lathe. Complete set with auxiliary installation tools to help you with installation. Delicate and practical, high hardness, firm and strong. Specification: Material:Carbon Steel System:English Boring Bar:R8 Boring Bar:7/16" Boring Head:1/2'' Scale:0.001'' Package List: 1*R8 Boring Head 9*Boring Cutter 3*Hex Wrench Package List