Simple MODULAR BIT HOLDER SYSTEM to organise all your CNC bits & tools.
The blocks are for 3,4,5,6 and 8 MM bits/tools,
they are 38x25mm (3, 4 and 5 mm bits) and 38x50mm (6 and 8 mm bits),
the box is 100x38mm. All holes are 0.5mm oversize in diameter, the bit/tool should have a good fit. Print them as you like and puzzle them together :-) Good luck.
UPDATE 21/07/2019 :
-Added V2 6mm blocks, A and B, more spacing in between the bits (for V bits) + a little more clearance for the hole.
REAL Filament PETG