CNC bits Holder V.1

The collet holders are fully adjustable to suit your needs. For example, if you want a single 9mm collet holder and the rest to be 3mm, simply print additional 3mm holders and insert them into the designated slots. If you ever need to swap sizes in the future, just remove the existing holders and replace them with the new ones. This version also includes extra space for other tools and accessories, along with multiple holes for storing bits. For printing, I suggest using PLA-CF for better strength and durability. I'd love to see your 3D printed versions — feel free to share photos in the comments!