My favorite portable tools is a Crescent (CTK70MPN 70 Piece) Tool Set that I've had for a few years now, and I still have it in the original box. But broke the latch arm sometime last year and just broke the other arm a few days ago.. So i made this latch arm and works about the same if not better than the original

I think all the Crescent Tool boxes use the same latches, not sure. If you can write in the comments that doesn't fit your tool box so other can know ;-)

You might have to file down the hook opening, might be too tight. I had to press kind of hard but it clicked in nice and firm for me

No

No

100%

Print without cooling, this will bond the plastic better and allow better bending. Don't want the part too stiff