Speed stitcher (when you don't care about pretty but you DO care about NOW.)
Index the fasteners on your boat- most boats and engines have less than a half dozen different sizes and styles of fasteners. Buy those sockets, bits and wrenches, and then buy a duplicate set. You will lose sockets overboard
, even if you are working belowdeck. store your tools in tool rolls with a couple of those little DNE packets of silica gel to keep things dryish.
Quality crimper. If you don't wince at the price
and pause before buying
it, you're not buying
the right tool.
an assortment of hardwood dowels and wedges and blocks, to allow the hammers to do what they have to do.
A big prybar.
A small prybar.
Big slotted screwdrivers, aka big prybars.
An assortment of fasteners, electrical hardware
and just plain stuff- all the tools in the world won't help if you don't have the parts
to fix what is broke.
A micicrotorch flux, and solder. A good microtorch will do what big torches will and also double as a soldering iron.
A drill and a small circular saw.
Cobalt bits. if you can only have one set of bits, buy the ones that will do the job.