There are 3 files. 

One with slots for my tools (listed at the end, also mirrored so it fits left side of the printer). 

Two blank ones to which you can make your own slots for tools you need (another one is mirrored so you can choose if you want to add your tool holder for left or right side of your printer).

Tools and parts in “my” file (hole sizes):
Scraper (42x1,5mm)
Glue stick (ø24x21mm)
Allen key (ø4mm, ø3mm, ø2mm) 
2x0,4 Nozzle (ø7x15mm)
Screwdriver x2 (ø4mm)
Knife (24x4mm)
File (ø10mm)
Fixed key (10x4mm)
2xUSB(A) (12,5x5mm)

Print with and however you want, I used PLA with Raft, 15% infill (grid), buildplate touching supports (15% zig zag) and for the rest default settings for ender 3 v3 ke (creality print). Printing time was around 2 hours.

This is a remix of Ken Wrights model Ender 3 v3 Right top tool bin