This model is a modular drill bit holder designed for the Gridfinity system, using a 1×3 base that fits standard plates and bins. The set is split into two stackable trays so you can organize a full range of bits from 3 to 11 mm while keeping the footprint as small as possible. Each channel is sized to guide and support the bit along its length, reducing wobble and preventing the tips from hitting each other. Embossed numbers on the top and bottom edges show the bit diameters at a glance, which makes it easy to put everything back in the right place after a job.

The design works well with common masonry and metal drill bits, including longer SDS-type bits, and has enough wall thickness to survive everyday handling in a busy workshop. You can print the body and the insert in different colors to quickly distinguish sizes or material types. This holder is ideal for keeping your essential bits close to your drill, inside a toolbox, or as part of a larger Gridfinity tool organization system.