Pegboard

150 x 150mm & 75 x 150mm standard (6mm holes at 1" x 1" aperture) with countersunk screw holes in the corners. Blanks added (2 & 3 pegs blanks both normal and XL). however the URL this was based on, all these files fit perfectly, as I would expect most 1" x 1" peg boards.

Print the boards ‘face down’, 3 walls minimum, 10% infill, no supports / rafts needed.

Tool holders print upright with supports, same settings as the peg board. 

No need for a wall spacer as the tool holders fit even when attached to the wall.

Based on the URL provided (tool holders only). The peg board itself was a complete remake.