I designed this holder for my hobby cnc router bits.
Holds up to 5 boxes, width 88mm x depth 10.5 boxes
i have this kit, fits snug.
has 4 holes ,i will screw onto the wooden cover what i made.
https://www.amazon.co.uk/Genmitsu-Milling-Carving-Including-Titanium/dp/B09XMTKRL5/ref=sr_1_5?crid=6SRE9X9FBDYI&keywords=cnc%2Brouter%2Bbits%2Bset&qid=1704588758&sprefix=cnc%2Brouter%2Bbits%2Bset%2Caps%2C135&sr=8-5&th=1