100 lbs of tools? Hah, I wish I could pare it down to even 300 lbs.
Like others, I have several different tool bags/boxes for different purposes. You can never have too many tools on board, unless you are just day sailing
in a bay never far from professional help.
The basic tools groups on my boat:
1. Wrenches. I have a big set of sockets and combination wrenches in a plastic briefcase, 1/2", 3/8" and 1/4", regular, deep, impact, ratchet box wrenches, adaptors, extensions, etc., etc. They came from Halford and were actually not all that expensive (a few hundred), and although I am spoiled from having grown up using Snap-On stuff (my dad was a toolophiliac), I am pretty pleased with them.
2. General mechanic's tools. More wrenches, two redundant sets of expensive German screwdrivers plus various odd size ones (jumbo sizes, stubbies, etc.). A set of socket-screwdrivers. Various vice grips, pliers, adjustable wrenches, hammers, mallets, center punches. Several redundant sets of allen wrenches, including some expensive German t-handle ones (my favorites), Torx wrenches, etc. Files, scrapers, awls, inspection
mirror, pickup tools, oil filter
strap wrench, large 1/2" breaker bar, torque wrench. Set of jeweler's screwdrivers. Pullers of different types. Bunch of other stuff I can't remember.
3. Tool drawer. Bulkier or less often used tools -- hacksaws, vice, clamps, large collection of drill bits and drill attachments, jigsaw blades, set of circlip pliers, etc., etc., etc.,
4. Tool cabinet (in my workshop/passage berth cabin). Power tools of all kinds -- drills (both battery
and AC operated), jigsaw, heat gun, orbital polisher, sanders, Dremel tool set with attachments. Several plastic compartment cases with all kinds of miscellaneous small parts
, materials, etc. Large collection of nuts, bolts, washers, machine screws, self-tapping screws. Drill bits. Hole saws of different sizes and types. Extension cords. Large collection of cable ties and plastic clamps. Pop riveter and collection of rivets of various sizes.
5. Soldering kit. Electric
and gas soldering irons. Solder, flux of various types. Soldering jig. Soldering stone.
kit. A good multimeter (Sinometer with clamp-on AC/DC current) plus backup cheap
multimeter. Various crimp tools and crimp terminals. Heat shrink tubing in various sizes. Various German wire strippers and cutters. Bunch of odds and ends of different kinds of cable. Block terminals (extremely handy things) in various sizes. Electrical tape in different colors. Screw-down cable organizers. Spare bulbs and LED units of various types.
kit. Collection of push-fit connections, T's, end caps. Pipe cutting tool. Large collection of miscellaneous brass and plastic fittings. Pipe wrenches. Teflon tape. Joint compound. Immersion heater wrench. Collection of hoze-lok fittings. Large collection of jubilee clips (hose clamps).
8. Ditty bag. Sailmaker's thread, whipping twine in different sizes and colors, collection of sailmaker's needles, glue, scraps of sailcloth, hot knife. Various knives and marlinspikes. Mousing twine. Monel seizing wire.
9. Propeller service
kit. Set of special Brunton tools for pulling the prop, pulling bearings, etc. Special grease fitting. Grease gun. Several spare anodes. Spare grease cap fittings.
10. In less accessible storage
: A complete drill press. A pressure washer. Large collection of spare parts
Rechargeable LED work light, flashlights, and my favorite -- an LED Lenser head
torch, which is permanently attached to my forehead when I'm working on the boat
Oh, that's just off the top of my head
. And it's never enough