Here's my list. I know I forgot many items but this should give you a start.
Boat Essential Tools &
Repair Items
General Tools:
Wrenches – Assorted and sized for your vessels nut and bolts
Flare Wrench’s – Very important for any
fuel line work
Drills – 1 Corded and 1 Cordless
Wooden Plugs - One for each thru-hull & tethered to it
LED Head lamp & Flashlights
Hole Saw Kit
Screw Drivers – Assorted
Pick Set – Very Handy
Tap/Die Set – Sized accordingly
Hack Saw – With spare blades
Bolt Cutters – Big enough to cut
rigging
Wire Cutters – Big enough to cut battery cable
Blow Torch – Mini butane type and one standard head
Socket Set - SAE and Metric
Pipe Wrenches
Pliers - Various sizes
Water
Pump Pliers
Needle Nose Vise Grips - For clamping hoses off etc.
Files – Various
Drill Bits – Full Kit
Countersink - At least two sizes
Sander – 5” Random Orbit
Dremel
Rigging Knife
Calipers
Rigging:
Sewing Kit
Monel Seizing Wire
Sail
Repair Tape
1” Nylon Webbing
Sail Slugs – To fit mast track
Sailors Palm, Needles & whipping twine
Clevis Pins – Spares sized for your boat
Cotter Pins – Stainless various sizes
Grommets, Snaps & Twist Locks
Loos Tension Gauge
Engine/Plumbing:
Water
Pump – Spare for motor and/or rebuild kit
Plumbing Fittings – Assorted to match parts on your vessel
Zincs – For heat exchanger
Solenoid – Spare
Fuel Pump – Spare
Fuel Line Hose – Min 3 feet
Hose barbs – male/male for splicing hoses (various sizes
Impeller – With spare gasket.
Oil Filter
Oil – for engine.
Fuel Filters – Primary and secondary
Hoses – Min 3 feet each size
Alternator Belt
Engine service & parts manuals
Mechanics Manual – For your engine specifically
Hose Clamps – Stainless AWAB type various sizes
Electrical:
Inverter – At least 500 watts to power small tools
Electrical Connectors – Assorted marine grade various sizes
Multimeter – Must measure amps, volts and resistance
Heat Shrink – Adhesive lined
Crimper – Ratcheting style for marine grade terminals
Zip Ties
Wire – Assorted gauges 6 feet min per size.
Jumper Wires 10 ga- With alligator clips on each end
Wire Strippers
Light Bulbs – Spares for each socket on the boat
Wire Snake
Misc:
Stainless Steel Bar Stock
Aluminum Bar Stock
Stainless Steel Dodger Tubing – short length
Velcro – Regualar and industrial grade
Sandpaper – various grits and to fit palm sander
Grease – Water proof
winch grease
PB Blaster (NOT WD-40)
Boe Shield
Lanocote
TFF Tef Gel
Silicone Caulk
3M 4200 – Or equivalent
Wet Suit, Mask & Fins
UV Resistant Duct Tape
Stainless Steel - Screws, nuts, bolts,
fender washers, nyloc nuts, finish washers
Tape – Electrical plus blue & green painters tapes
JB Weld – Or equivalent
Hose – 6 feet minimum for each size on your vessel
C-Clamps
Label maker