The requisite hand tools, obviously.  But do you carry anything 'out of the ordinary'?

Hammer (s)   (the best tool EVER for a concrete pump)

Wrenches, sockets, hex-drivers, screwdrivers, allen wrenches, multimeter, fuses, Duct Tape, jumper wires....

the four-way tool for commercial hose bibs, they are all square drive but some are too deep to access with a crescent wrench and are usually damaged.

A mag, trowel, edger, and a few anchor bolts...... amazing what finishers forget.

test cylinder, knife, tie wire pliers ad 1 big fat roll of 100 mi hr tape.

sometimes it seems I just dont have enough....

Rust ! I run a Putz ! ;-)

i keep a 4 lb maul with a #8 piece of rebar welded on for a handle and then a large nut welded on the bottom of the handle. whats the nut for you ask,... makes opening or closing stubborn boom clamps a breeze. just slip the nut over the end of the handle and it acts like a handle extender, you get alot more leverage

rain suit,insulated boots,coveralls and jacket.roll of tennesee chrome [duct tape],10mm allen wrench, claw hammer and hand full of 16 penny nails to throw in finishers boots to help point them in the right direction when they stray .

A "Water hose coupler" best 5 bucks I have spent in a LONG time...But my 47 is set up in such a way I can push water into the tank bypassing the pump!!So I don't have to try and get the hose into the hole in the top of it,I can just plug right into the redi-mix trucks hose and walk away!!RM drivers like it too they dont have to un do their entire hose and have it dragging in the mud!!!

The only tool my tool box is missing is a concrete pump :) Gotta like a maxed out mechanics/welding truck. LOL

bottle of whiskey!!!!

Hey little lance he ment tool box on pump not at home.

i know i am always prepared.

Here's just SOME of what I like to roll with...