Buy more than* S$200* and get FREE SHIPPING
Due to the heavy typhoon attacked to Japan on Sep/4/2018,
Items will be shipped from Narita International Airport(NRT) or Chubu Centrair International Airport(NGO),
which normally should have been shipped from Kansai International Airport(KIX).
It may cause delay on shipment. Sorry to have kept you waiting and thank you very much for your understandings.
Although there is thickness and it is impossible to know the hole diameter with the value of direct reading,
Since there is a conversion table on the back side, you can know almost exact hole diameter
If you would like to know more accurately than this you should use a caliper
I am satisfied with this product The case is also good feeling