Work knives when you don't have to go thru airpts, L to R Spydy Rescue or Atlantic Salt -A little pricey,West Marine cheap, camillus rigger cheap, Hacking knife 1/4" spine good for pounding on really cheep $16.oo us , Myerchin $$$ but good, if you get one don't let anyone touch it and wear it to bed. You will note I don't prefer pointy knives 'cause I always end up stabbing myself and not the sharks..Its handy to have Marlin spikes, at least 3 drift pins, shackle breaker or 2, couple of 6 & 8 inch crescents, measuring tape wind up reel. A small breaker bar and short handled 2# hammer is nice.....steal black electricians tape or black rubber tape when ever the occassion presents itself, in the divers tradition of being the s***ehawks of the sea= seagulls,louts and layabouts.