Inputting pre-drilled thumb

1.

Find
1.  for the round thumb, find the right size of the thumb at the measumeasurement.
2. When the size is selected register on "Size" section exemple 

   

   

    

3. The size of the pre-drilled thumb are 1 1/8 , then register on" Inserts OD" in order to drill the initial hole with the 1 1/8 drill bit ex:

   

   

   

   
   
4. Mention the type of pre-drilled thumb you use on " Thumb Insert Type" the type of sleeve are
   1. Turbo Xcel Round 
   2. Contour Taper Thumb Sleeve  
      
   3. Exemple: 

      

      

   4. Select one you have in stock then press arrow to confirm . Exemple 

      

   5. You are all set to drill the thumb !!!!