Weight Bearing Keychain Grappling Hook

Ok, so the two piece hook didn't actually survive my weight for long. The simpler flat hook did however, and it seemed like it could do so indefinitely. I weigh about 200 lbs. and was swinging around a bit so a couple extra lbs. of centrifugal force too. Tied to 3mm Kevlar line. Don't actually use this for anything life threatening, obviously.

Printed with PLA 100% infill, a raft is a must because it warps so much while printing. The two piece file is included if anyone wants to improve on it