Simple small 3/8in pocket ratchet set, flip from side to side for loosening and tightening. Included 5mm to 13mm sockets. Use Part 2 and part 3 for internals, V2 of them can be troublesome. Results may vary on printing. Higher quality is better! :)Printed at 215-230C 40-50mm/s at 0,1mm. Retraction Enabled.https://www.youtube.com/watch?v=HH5ibLgURsQhttps://www.youtube.com/watch?v=zmsJ4ocO2dE