Posted 15 March 2011 - 03:22 AM
When I started at my current location (supporting three sites), I fitted out a VCR bag with a fair collection, it grew to cause shoulder issues and as time went by it gradually was pared down to become my belt kit now. Flashlight, needle nose, small flush cutters for wire ties, #1 philips and flat small screw drivers, smaller slide part of metric and SAE Wiha allen sets. Thats it. Close at hand additionals are an Amprobe meter that does all including inductance, Wiha kit and handle w/ metric 4.0-10mm nut driver, #0-2 philips, similar flat and 6-30 torx. Rest is in an an additional bag in shop in the basement. Nothing inaccessible in a pinch, and no more shoulder MRIs from carrying way to much crap around at once.
One of my handiest backup tools is a little red box containing a wide range of flat, philips, allen and torx bits with screwdriver handle, plastic wheels for using the bits alone, and a small flat ratchet w/ 1.5d min throw. Looks harbor freightish, but it has been an ass-saver in very tight spots where no regular tool can get into....