2 CHECH THE HEAD DIAMETER

3 CHECK THE TOTAL LENGTH

4 CHECH THE ROUGH GRINDING SIZE

5 CHECK THE GROOVE WIDTH & DIAMETER

6 CHECK THE FINISH HEAD DIAMETER

7 CHECK THE ROUGH RADIOUS

8 CHECK THE FACE

9 CHECK THE FINISH RADIOUS

10 MAINTAIN THE TOTAL LENGTH

11 CHECK THE HARDNESS

12 CHECK SEMI FINISH GRINDING

13 CHECK THE SEAT ACCENTRICITY AS WELL AS FINISHING

14 CHECK THE FINAL GRINDING