Correct Answer - Option 1 : A numerical method of identification of the tool
Explanation:
Tool signature is a numerical method of identification of the tool.
There are two systems to represent the specifications of the tool
American Standard system (ASA):
In this system the specifications are arranged in the following order
Back rake angle- side rake angle- End relief angle - side relief angle - end cutting edge angle - side cutting edge angle - tool nose radius.
Orthogonal Rake System (ORS): In this system the specifications are arranged in the following order
(Inclination angle) – (Normal rake angle) - Side relief angle- end relief angle - end cutting edge angle – Approach angle – nose radius.