Here is an incredibly useful collet box.
This is natural pine and pine-ply, with a white finished MDF mounting board.
It has 100 holes in a 10x10 grid so can be laid out 8 x 10 plus two rows for specials as shown
No need to rummage and peer to find the right collet - you will be able to locate it logically by its position in the grid!
I have found this incredibly useful - I cannot work out why I struggled without one for so long!However the collets are now up for sale on e-bay, (as I move onto a larger scale project) so the box can go as well. Check my other listings for collets and clock keys!