The point on a tail hook assembly actually does take quite a beating especially when impacting a concrete runway surface. The backside of the hook is relatively flat and sits parallel to the deck when it's in the down position and this causes a lot of wear and tear to the whole back side of the point. The tailhook also has a dampener, like a shock absorber, to prevent the hook from bouncing or what we call "hook skip". This contributes to the wear also because it holds the hook down against the concrete. US carrier aircraft tailhooks are replaced every 100 traps. The whole hook assembly isn't replaced, just the point. I don't recall if "bolters" are counted in that 100 traps.
An Aircraft Mechanic only needs two tools, Duct Tape and WD40.
If it moves and it's not supposed to - use the Duct Tape.
If it doesn't move and it's supposed to - use the WD40.
Intel(R) i5 CPU 750 @ 2.67GHz, P55M-UD4, GeForce GTX960 8.00 GB RAM, Windows 7 Ultimate (32 bit & 64 bit on separate HDs)