Diamond is the hardest cutting tool material.
6) Which one of the following is the hardest cutting tool material ?
Related Cutting Tools MCQ - Machinist(Set-1) with Answers
back rake and side rake
There are two rake angles of a lath cutting tool. These are back rake and side rake.
any one of positive, negative or zero
Rake angle of a lathe tool can be positive, negative or zero.
Positive rake angle
Positive rake angle a lathe cutting tool makes it sharp and pointed.
Since negative rake angle of a lathe cutting tool increases area of contact, in increases the friction between the work piece and the cutting tool.