The hand features a reinforced socked joint, axle hole for holding all sorts of things and a place for 4 fingers - you can either use original Lego snap on pieces or print mine, which are based on the Lego counterpart, but modded for printing.
The model is a left hand! To print the right one just mirror it!
I recommend to print in PETG (this is what I've tested).
Print with supports in supplied orinetation.
For best results use 0.1 mm layer height and 100% infill.
The author marked this model as their own original creation.