This is a Remix of : Grappling Hook - Unchaterd 4 by That3DPrintGuy
Only minor tweaks and scale set for easier printing, all design credit to That3DPrintGuy for a great moving model that looks awesome !!!!

Be careful when gluing the "Upper-Shaft" and "Lower-Shaft" together, the centre join is offset, and the grappling arms need to line up with the holes in the "Lower-Shaft" so suggest attaching the arms, before gluing !

You will need to print 3 x "Arm" and 3 x "Pin_and_Cap"

The "Top_Screw_Spacer" is optional, you can use this if your "Top_Screw" does not go down far enough.

Updates to original models as follows:
1) Scale,
I used a scale of 5:1 from the original size loaded in my Slicer - this is still more child sized than "Man-Sized".

2) A few pieces have been scaled to allow for bigger tolerances, the "pins" and "top screw", as they were too tight for me in the original models.

3) Arm - Remove the bulge from the "teeth" on underside for a flatter print surface.

4) Added some angles to the "Upper-Shaft" and "Lower-Shaft" for easier printing of some over hangs or bridges. Very minor tweak to originals.

I've uploaded image raw, straight from the printer , just glued where required, will look to do a proper filler and paint job and post results.

I scaled the parts using Repetier (My Slicer Software), and then exported them as .STL files, I hope these work for you. They looked OK in Windows 3D Builder too.