Bit size for using official BSA axles

[MBL Racing]

helping a friend out to get ready for district but need smaller bit for BSA out of the box axles. What number do i need? I have 43 and 44 only. Thanks.
Mark

 

[5KidsRacing]

#44

 

[MBL Racing]

Thanks, I thought that would still be too big.

 

[5KidsRacing]

A #44 is .086 and BSA axles have a large side around .089 so it works just fine. A #45 is .082 and is a really tight fit.