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Inputting pre-drilled thumb
- for the round thumb, find the right size of the thumb at the measurement.
- When the size is selected register on "Size" section exemple



- 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:



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


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

- You are all set to drill the thumb !!!!