Nose height m Tolerance(mm) G e n e r a l t u r n in g in s e r t s c o d e k e y Round Round Thickness S Tolerance(mm) Without Without Without Without Without Without Without Without Without Inscribed circle Inscribed circle Single-side Single-side Single-side Single-side Special Square Square Regular triangle Regular triangle With With With With With With With With With With With Diamond with 80 o Diamond with 80 o Diamond with 55 o Diamond with 55 o Diamond with 35 o Diamond with 35 o Code