Use PLA or PET because they are having a better mechanical resistance. Do not use ABS for this design. 

• 0.3mm layer height resolution
• 3 shells
• 15% infill
• 60˚ to 65˚ Heated bed temperature according to the type of material
• 195˚ to 210˚ extruder temperature according to the material

For printing the screwdriver stand you don't need support material. Just make sure it sticks to the printing bed and your printer is properly configured to do bridges. The recommended slicing parameters are being listed at step2

I attached these two things together because I always need some note sheets and something to write when I am at my work desk. They can be printed and used separately or bonded together like I did. I simply glued them. This also gives much more stability to the entire stand.

If one desires something for more screwdrivers, this modular stand can be printed twice and glued back to back. This will provide room for more screwdrivers and more stability.