Obviously it wouldn't be of any value to suddenly change existing kits.
For new kits produced in future would anyone notice if component sizes had a degree of standardisation ? I doubt it.
It would be sensible for any future 'standard' sizes to incorporate legacy standards like the 7mm and 3/8" tube.
Another side benefit would be not having to source obscure drill sizes that aren't available in high quality wood drill bits. This would also offer the opportunity to sell a small set of specific high quality long drill bits to pen turners.
It could have advantages for all concerned, but needs vision to implement, so we're stuffed.
