I made a Gridfinity compatible holder for the LTT precision screw driver bit case. I used a gridfinity generator for the base and then modified the HSW mount made by aethermouse. I designed this in Creality Print 6.1 for my K2 Plus and also printed it on it (pictured). Printed with Polymaker PolyLite PLA Orange and Polymaker PLA Pro Metallic Black.