First of all, you are getting some great advice. I spent some time in Heavy Duty Diesel Mechanic School. My instructor at South Seattle Community College had a lot of influence on what I purchased for tool. Fred had 30 years’ experience as a HD Mechanic, so he gave the students of list of tools they needed. I still have my classroom notes from 1983 … your question motivated me to pull out a make a list. We’ll call it “Fred’s List”:
Circa 1983, everything was SAE, there wasn’t much metric in HD equipment jobsite at that time.
Fred list, in order of priority:
Starter Set:
Pocket Tools (carry them on you at all times)
1) Combination Wrench’s 3/8”, 7/16”, ‘1/2”, 9/16”, 5/8”, ‘3/4” (legacy craftsman panel style)
2) 447 Side Cutters – Channel Lock w/ 30 Degree
3) 420 Channel Locks
4) Screwdriver (#2 one end, regular blade on the other end) – Exolite (likely no longer made)
5) One 2 cell flashlight
5) 6” adjustable wrench
6) One 6 foot tape measure w/ small blade on white background
Portable Tool Box Set:
7) Hip Roof 22” x 7” inch metal tool box with metal tray - any quality brand
8) 8”, 10”and 12” Crescent Wrench (black finish if outdoors so they don’t get hot) – any quality brand
9) Proto 3/8” Drive Ratchet (now the classic large pear head, not fine tooth count)
Note: Always have rebuild kit in your tool box (especially remote jobs)
10) 3/8” drive deep sockets (12 point) – 3/8” to 15/16” - Any quality brand
11) 3/8” drive extensions 2”, 4” & 6” – Any quality brand
12) 3/8 In Drive T-Handle – Any Quality Brand
12) 16oz Ball Peen Hammer
13) 4 Lbs Hammer
14) 3 screwdrivers of your choice (example: #2 P, 3/16 & 1/4 blade)
15) 1/2” punch (any brand)
16) One Big Chisel (any brand ~ 1” diameter)
17) 17” pry bar (J style, any brand)
18) One 1” Inch Micrometer (field measurements for specs)
19) Multi-meter (first one good quality, upgrade to Fluke when you can)
19) Hacksaw w/ blade storage in handle (18, 24, 28 & 32t)
20) One Big Chisel (your choice)
21) Proto 1/2” drive ratchet (long 15” handle, not fine tooth)
22) ‘1/2” Sockets Deep Sockets (12 point) – ‘1/2” to 1 ¼ (any decent quality set)
23) ‘1/2 in Drive Extensions 2”, 4”, 6”
24) 17” long 3/8 Extension (high quality Snap On with then profile neck … for transmission removal)
25) 3/8” Drive Wobble/ Universal Joint socket set 3/8” through 15/16” 12 point
(again, for transmission removal)
26) Welding hammer & Gloves
27) 12” Pipe Wrench
28) ‘1/2 In Drive T-Handle around 18” wide
(At this point, your small tool box is full, time for a rollaway)
After you’ve landed a good paying HD Mechanic job, get your rollaway:
1) Kennedy 5 drawer top box with 3 to 5 drawer bottom rollaway (basic rollaway, small by today’s standards, Fred had one, I have the same … complemented recently with a roller cart w/ drawers and wheels to move out to the driveway as needed … @ HF for $160)
2) ‘3/4” Drive Ratchet & Sockets – ‘to 1 ¼ (Minimum), to 1½” (smatter), 2” (sharp)) … The larger sockets are not deep, just standard.
3) Proto 1/2” drive ratchet (short handle)
4) Combination Wrenches
(3/4” inch to 1 ¼” … larger sizes based on what you use frequently)
5) 3.5 AMP Milwaukie 1/2” Drill
6) Measuring Tools
7) Tap & Die Set, Easy Outs
8) Hex Bits, etc
9) 3/8” and ‘1/2 Drive shallow sockets (start w/ deep, then get shallow)
Fred made a point on tool brands, to not be too picky. If you destroy your 9/16” Craftsman socket, don’t take a 3 hour lunch going to Sears. Instead, buy a replacement socket from the next tool truck dealer that drive into the shop … be it Mac, Cornwell, or Snap On … don’t miss work, keep going. Besides, it is easier to tell the 9/16 from the 5/8 when you have a different brand.
Fred liked proto ratchets with cross hatch and Craftsman raised panel so they didn’t slip out of your oil covered hands on cold Minnesota winters. I've enjoyed my Proto ratchets over the years. They are great for older American cars and Heavy equipment. However, I’ve added a couple of fine tooth ratchets with a variety of head types which are nice for working in tighter spaces of today’s Honda’s and Mini Coopers.
Some of the best advise you are getting great advise to not to have a few thousand dollar “Snap On Tool” bill when you get out of school. For SAE stuff, I totally agree with earlier input to check out Pawn Shops, Craigs List, Garages Sales, etc. You can get a nice Proto 3/8” and 1/2 “ Drive SAE set with the old school pear head in a 36 tooth for with a full complement of sockets, breaker bars, extensions and so on for less than a couple of hundred dollars. Dig through a tub of combination wrenches and pick up some USA Made Craftsman Combination Panel Wrenches for fifty cents to a buck each. My experience with metric is there isn’t much quality product available used, so you'll need to complement the used ratchets above with some new metric sockets (3/8 in drive 8mm to 19mm, ‘1/2 in drive 13 to 22mm, 24, 27, 30, 32 and 36MM ). My instruction said he didn’t buy impact sockets, instead he used his everyday sockets for his impact wrench. That was 1982, today you can get a nice set of impact sockets for $50 at Harbor Freight which seems wiser.
I’d check to see if Snap On is your only option, back in 1983, the tool sets offered to me varied from Craftsman for a $200, Mac for $400 and Snap On for $600. It sounded mandatory for you to get the Snap On … certainly good tools, but not a good habit to have credit line with your snap on dealer. Pay cash for your tools and you’ll like them a lot more! Like Clint Eastwood said in the movie Grand Torino with his pegboard full of tools as a backdrop, “I spent a lifetime working at the Ford Factory to collect all those tools on that wall.”
My career moved me into an office job 28 years ago, however over the years I built up a I have built a full complement of Proto ratchets, Craftsman wrenches, Channel Lock pliers because of my teachers influence. He was definitely right about getting your deep sockets first because you’ll put a short extension on your shallow sockets all the time. To this day I use my deep sockets for everything first, only if needed do I reach for my shallow sockets.
I enjoyed reading the current HD Mechanic instructor who provided circa 2015 input on what you need (30 years later, the list has changed a bit).
Enjoy your recent purchase of new tools, enjoy your new career.