A classic 3x3 bin to hold screwdrivers. 

"Why this model as this holds mixed and custom screwdrivers snd we already have many out there?"

Correct! Well, this is more a tutorial for others, rather than an object to print as is. 

I spent a while thinking on how to design the holder and got a simple design based on a representation of a screwrdiver which is made of 3 different cylinder. 
L1/d1 - full length and tip diameter
L2/d2 - handle length and diameter
L3/d3 - handle terminal part length and diameter 

Enjoy the attached Fusion360 file to customize to your needs, and boost if you appreciate!