CanNeed CSM series Can Seam Micrometers are use  for measuring  the seam  thickness and  length. The fine tuning function helps to avoid the deviation caused by over rotation.

CanNeed-CSM-208 is applicable to measure the seam thickness and length of flat bottom straight wall cans.  

CanNeed-CSM-207  is  applicable  to  measure  the  seam  thickness  and  length  of  aerosol  cans  and necked-in cans.