when i take my blade today ,i found that ;a 9mm blade. make a personally handmake-knife ?why not ? every type of blade are boring,you want do it by yourself? do it right now!make it fun and intresting.so do i;i thonght a night.And i designed this ,9mm blade box V1.0; maybe it's not good enogh but in this site ,every one will evolution my design ;and 1 week or later i'll make it better ,in v2.0;description:every part is depend,you can change evrything.