SSC JE Mechanical Engineering 2013 Paper

Tool signatures
ASA system ⇒ Back rate angle – side rate angle – end relief angle (ERA) – side relief angle – end cutting edge angle – side CEA.
ORS system ⇒ I(inclinationangle) – ${\mathit{\alpha }}_{\mathit{n}}$ (normal rake angle) – end relief angle, end cutting edge angle – Approved angle – nose radius
7 elements in ORS