As pictured, these were printed using Hatchbox red PETG. I would not recommend printing these out of ABS, because the parts are very large and prone to warp. If your shop is not air conditioned, I would not recommend PLA. Which leaves PETG as an excellent choice for this. Infill can be very low for this part, since strength is not really needed, but make sure you have enough top layers to completely close up all gaps in the top and give some durability. Each hole saw slot has a closed bottom to keep the teeth of the saws from hitting the bottom of the drawer, but that means that the teeth will be against a "top" surface, so you will need enough layers to keep the plastic from being ripped up by the saw teeth. These parts are very large and will require a large format printer to print.