$\varphi$=Plan approach angle

$\varphi_e$=End Cutting edge angle

$\lambda$=inclination angle

$\alpha$=Rake angle

$\alpha_o$=Side relief angle

$\alpha_o$=End relief angle

r=nose radius

Parameter	Defined by
Location of cutting edge	$\varphi,\varphi_e$
Orientation of face	$\lambda,\alpha$
Orientation of principal flank	$\alpha_o$
Orientation of auxiliary flank	$\alpha_o^{'}$
Nose radius mm	r