Grippy Rotary Bit Holder - Gridfinity

Summary (TLDR):This is a simple rotary tool bit (think Dremel) holder with a shank retaining feature. You print for the size you need and then when inserting the shanks they stay put. It uses either a pause in printing to insert a 2mm thick piece of material (silicone, felt, foam, etc.) or a 3D printed TPU insert with hole. The profile includes the The bin with a void for pausing and inserting a retention materialThe 3D Printed TPU insert for standard and small Dremel style shanks (3.1