The irwin has 1/4, 5/16, and 3/8 wich i personally have not seen on Klein or other 10 in 1s.
it has 5/16,1/4 but no 3/8"
look at the link that ptemko provided. irwin has 3/8.
Yes it does best all in one I have found so far.
what i was saying ist the kline has 1/4,5/16 just no 3/8
By far, my automotive wire strippers. I get about 6 months before i have to buy new ones cause they start nicking the wire but i love em, save so much time.
just bought myself a new led troublelight that has a magnetic holder and can be charged in under an hour from the cigarette lighter in my truck. best 50 bucks i have spent in a while
Oh! I for see a new screwdriver in my future! that 3/8 option would be way handy.
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Originally Posted by william antley
Hmmmm. Well, I can't really think of any ONE particular tool that I could not do without on EVERY service call ... except, as one previous responder mentioned ... my own brain and it's knowledge and experience.
Originally Posted by bigjohn79
One of the problems with your question is that many of those who might give an answer to it work in various different areas of the HVAC field. Therefore, any particular "must have" tool might vary between them depending on the specific kind of work they're doing (type of service call they're making).
For instance, right now I do almost exclusively DDC controls. In previous employment I did almost exclusively boilers in yet another job ... almost exclusively package AC units, in yet another job ... almost exclusively large centrifugal units. Etc.
In general, I'm sort of the lazy type. I tend to hate packing around a bunch of stuff I may or may not need. And tend to want to see what I'm up against as concerns the trouble call before I start breaking out a lot of stuff from the truck.
So, over time, after having worked with a lot of different equipment for many years, I pretty much settled on a standard "load-out" of stuff I carry pretty much all the time. It's small in number, weight and total size. And as I'm given to wearing clothing with sizable pockets (including "cargo pants"), it all fits easily into my pockets or pouch on the belt.
Mag-Lite, 2 AA battery type, with LED bulbs
Multi-tool, Buck type (just my own preference)
Folding Hunter style knife, Buck ... again
Couple "tweaker" screwdrivers ... small ones in shirt pocket
Klein 10-in-1 screwdriver
Klein Wire stripper
Roll of electricians tape ... used for all sorts of purposes
Couple home made jumper wires ... alligator clips plus On-Off switch
Pocket DMM ... usually Fluke T5-600 or equivalent
Small parts case ... with a few wire nuts, etc. Fits in any pocket
Pocket digital thermometer
Between all that stuff I'm often able to fix or at least do preliminary diagnosis of equipment to narrow down to where the source of the problem lies.
My first objective is always to figure out WHERE and WHAT of the problem. Or, to establish "what it is not". From there I can decide more accurately what other tools and/or materials I need.
Did I mention that I HATE dragging around a lot of stuff around that I end up not needing? :-)
With the items I listed, I can usually get a pretty durned fair idea of precisely what I will need to fix the problem or do a further, final diagnosis.
As far as your question as concerns the kind of tool that I didn't know I needed til I had it ... not a lot comes to mind. Except, perhaps two items.
One is a set (metric and American standard) of those combo wrenches with the ratcheting box ends. Geez, they can come in really handy at times.
The other is the Alligator pliers.
The Alligator is a sort of channel lock plier. But it grips stuff FARRRRR better than a regular channel lock. There is simply no comparison in gripping power.
I liked em so much that after getting one to test out, at my employers expense, I went back and bought a whole set of em for my personal tool box at home.
Front shirt pockets: 2 AA led pin lite, pen, pad of paper (with temp/pres. chart for summer), folding business card holder (also store my parts supplier ph. #'s, customer checks, cc receipts in there)
Front right pants pocket: pocket knife, 1/4" bit, 5/16" bit, loose change
cell on belt, tool bag on shoulder
Oh, you asked for 1 tool
The 3 tools I carry with me at all times:
1. My Leatherman tool
2. A 2AA Mini Maglite upgraded to LED
3. A 6" Crescent brand adjustable wrench
Never know when you might need them!
I have never been lost, but I will admit to being confused for several weeks.-Daniel Boone-
Just because a person wanders does not mean he is lost.
Any 1/4" bit will work in this screwdriver. Mini Mag on belt.
Beware of advice given by some guy on the Internet.