1. Socket
   Hex wrench
2. Creeper
   Torx wrench

A set of good quality sockets will get you that extra bit of torque you need to get even the most difficult of nuts and bolts. The idea behind the socket wrench isn't particularly new and these things have existed for several hundred years. Clock-winding keys from the Middle Ages were essentially socket wrenches.

1. Creeper
   Digital calipers
2. Multimeter
   Impact wrench

Impact wrenches are power tools that can work with a variety of power sources. There are electrical impact wrenches and hydraulic impact wrenches but most shops will use one powered by compressed air.

1. Brake pads
   Gooseneck
2. Jack
   Vice

Jacks come in a variety of styles, from an old-fashioned mechanical jack that uses a screw thread to rise up and lift a heavy object like a car, to the more advanced hydraulic jacks you see in shops that use hydraulic power.

1. Heat gun
   Ratchet
2. Wrench
   Rotary tool

It would be hard to find a more important tool in a mechanic's repertoire than a good old-fashioned wrench. A good quality wrench won't just be made of steel, it'll be something like a chromium-vanadium steel alloy so it can stand up to some pressure.

1. Spanner
   Calipers
2. Pliers
   Torx wrench

Pliers can come in a number of forms but for the most part, all you need are handles on a pivot with some kind of teeth on the other side. They're handy for holding, cutting, loosening, and even bending metal.

1. Chisel
   Scriber
2. Belt knife
   Creeper

Sometimes when you're working with metal parts, you need to mark a measurement or where you need to make a cut but a pencil or a pen obviously won't work. A metal scribing tool works exactly like a pencil but it cuts the line into the metal rather than simply leaving a mark on the surface.

1. Digital calipers
   Hammer
2. Wrecking bar
   Angle grinder

A hammer has more of a reputation as a carpenter's tool but it's 100% necessary in a garage setting for those times when something is so corroded, worn, or warped that it needs less finesse and more brute force like getting brake calipers and pads loose, or stuck rotors.

1. Wire terminals
   Ratchet extender
2. Pick and hook set
   Calipers

A pick and hook set may look like some rugged dental tools but they're great for precision work in a car. The tiny tools can remove O-rings, separate tightly attached electrical components, pry wires apart, and snag fallen washers or other tiny pieces you can't reach with your fingers.

1. Digital calipers
   Angle grinder
2. Magnet grabber
   Wrecking bar

A wrecking bar, also known as a pry bar, a crowbar, a jimmy bar, a gooseneck and about a dozen other names, is an extremely versatile tool that has a number of uses related to prying and pulling things apart. The name "crow" comes from the actual bird and dates back at least 500 years.

1. Laser thermometer
   Headlamp
2. Spark tester
   Multimeter

Headlamps have a ton of uses outside of the mechanic's garage but inside they're useful for when you need to see inside and around an engine but don't have a free hand to hold a flashlight. Thomas Edison actually developed some of these for miners around the year 1914.

1. Nut splitter
   Hydraulic screwdriver
2. Angle grinder
   Blast ratchet

A nut splitter works by forcing a chisel tip into the flat side of a nut and, as you crank the handle, it embeds itself into the metal until the nut splits open. This will remove a stuck nut but not damage the threads underneath.

1. Magnet grabber
   Automotive stethoscope
2. Spark tester
   Brake bleeder

Everyone has had a moment when their car was making a new and mysterious sound. An easy and efficient way to get to the root of that noisy problem is an automotive stethoscope which can narrow the sound down to the precise part of the car that's making it. A wireless version can even diagnose issues while the car is in motion.

1. Laser Thermometer
   Headlamp
2. LED under-hood light
   OBD2 scanner

The best under-hood lights have a magnetic base on them so that they're not limited to being under the hood and can be stuck right under the entire car, for instance, so you can clamp them down wherever you need to see what you're doing.

1. Automotive spigot
   Oil drip pan
2. Air filter
   Funnel

There are a lot of liquids inside a car ranging from motor oil to washer fluid to transmission fluid. A funnel is going to ensure they all get where they need to go without spilling, which is super important since spilled fluids won't just make your engine dirty, they can also be fire hazards.

1. Digital torque adapter
   Digital caliper
2. Diagnostic inspection camera
   Torx adapter

When you're in a hurry you might just want to tighten every bolt as tight as humanly possible, but that's not actually the right way to do things. Every bolt on a car actually has a factory-recommended amount of torque that should be applied and especially when you're dealing with lugnuts you want to keep that in mind. A digital torque adapter on a ratchet ensures the exact right amount of torque and no more.

1. Air compressor
   Tire machine
2. Generator
   Creeper

Tons of tools in a shop are pneumatic, which is to say they run on compressed air. You need an air compressor if you want to run them. They seem daunting but some of them can be as cheap as about $150 or so.

1. Hydraulic jack
   Tire changer
2. Creeper
   Trim removal tool

Tire changers may not have the most clever name ever, but they do what they say. Not in the traditional "jack up the car and put the spare on" sense; they are used to install the rubber wheel over the metal rim.

1. Circlip
   Vice
2. Battery carrier
   C-clamp

Car batteries are not exactly the lightest part of a car by any means and taking one out takes a bit of finesse and elbow grease. An old battery is bound to be not only heavy but greasy. Save yourself the trouble by using a battery carrier to yank it out and move it around.

1. Brake bleeder
   Brake degreaser
2. Ramps
   Oil-drip pan

Oil changes are best done with an oil-drip pan under the car to catch any spills from the engine, transmission, or whatever is being worked on. It's not just a matter of cleanliness but also one of safety, as errant oil is dangerous.

1. Flatbed
   Runner
2. Creeper
   Jack

At the end of the day, a creeper is just a board on wheels. Because you need to get in and out underneath cars without spending half your time wriggling across a dirty floor, this was created as a simple and easy tool to get mechanics where they need to go.

1. Heat gun
   Laser thermometer
2. OBD2 scanner
   Multimeter

A heat gun is helpful for heating up paint that needs to be stripped away or for shrinking and sealing vinyl wraps on a car. It's also good for flash drying paint when you want to speed the process up. You can generally get them for under $200.

1. Angle grinder
   Needle scaler
2. Ratchet extender
   Heat gun

Looking like a massive tattoo gun, a needle scaler is useful for those big rust-removal jobs. Over a dozen 1/8" needles zip up and down 4,600 times per minute to power through rust, dirt, paint, and whatever else may be present to obscure the pristine metal underneath.

1. Chisel
   Screwdriver
2. Scriber
   Socket wrench

Screwdrivers have been adapted to a wide array of functionality with many different heads including Slotted, Phillips, Robertson, Torx, Clutch, Frearson, JIS, Posidriv, Hex, Tri-angle, Tri-point, and Tri-wing, just to name a few.

1. Circlip clamp
   C-clamp
2. Vise
   Digital caliper

A good machinist's vice can provide a strong grip on something you're cutting, filing or otherwise working on. These things have existed since at least the 1750s, so they have a history of reliability.

1. Wire terminal
   Jump starter
2. Jack stand
   Ratchet extender

A jack only lifts the car up but it's not safe to hold it on something so unsteady. Jack stands exist to safely steady a car at elevation so some work can be done without risk of an accident.

1. Magnet grabber
   Hose clamp pliers
2. C-clamp
   Digital calipers

Digital calipers are used for measuring extremely precise distances and clearances which can be important in an engine where everything must be perfectly measured and sized for optimal functionality. You can use them to measure the precise snap ring thickness or the bore of a seal.

1. Hydraulic jack
   Magnet grabber
2. Engine crane
   Battery carrier

Engine blocks can weigh up to 1,000 pounds, so an engine crane is needed to safely lift one out of a car. Cranes come in a variety of sizes, are capable of lifting a variety of weights and can range anywhere from a few hundred to a few thousand dollars.

1. Laser thermometer
   Digital scanner
2. Multimeter
   Ohmmeter

A laser thermometer is the quickest and easiest way to determine if a part of the engine is overheating or if one of your refrigeration circuits isn't working the way it should. Just point and shoot and you'll be able to see where the temperature isn't what it should be.

1. Creeper
   Voltmeter
2. OBD2 Scanner
   Spark tester

A voltmeter is useful for dealing with a car's electrical system if something isn't working right and you need to find out where the short might be. The earliest voltmeters date back to the 1820s when Andre Ampere used one to measure a current.

1. Palm ratchet
   Gear wrench
2. Torx wrench
   Hex wrench

A palm ratchet is an obscure but helpful little tool for when you need to loosen something up but don't have the space to use a tool with a handle. You're going to sacrifice some torque on the job, but it's better than not being able to reach at all.

1. Headlamp
   OBD2 scanner
2. Spark tester
   Diagnostic inspection camera

A diagnostic inspection camera works with a fiberoptic camera attached to a screen that you can snake into and behind all sorts of small and hard to reach areas. This makes diagnosing an issue much easier since you don't need to take things apart to see the problem.

1. Rotary tool
   Angle grinder
2. Heat gun
   Ratchet extender

Angle grinders are useful in all kinds of shops for grinding and cleaning metal as well as cutting through things like rusted bolts and fasteners. There's actually no clear consensus on when the angle grinder was invented, with some stories saying it was in Germany in the '50s and others placing it as late as the early '70s.

1. Oil-drip pan
   Oil rag
2. Oil-filter wrench
   Oil sealant

An oil-filter wrench makes it just a heck of a lot easier to take hold of an oil filter which could be too greasy to grab with your hands and more awkwardly shaped than a normal wrench can handle. There are a handful of different kinds but they're all basically the same.

1. Multimeter
   Micrometer
2. OBD2 Scanner
   Laser caliper

OBD2 stands for On-Board Diagnostics 2 and that's the basic system that runs in most modern cars and trucks. The OBD2 sends signals to the various systems and components in your car to keep a general picture of how it's functioning. An OBD2 scanner lets you tap into that system to identify when a problem crops up and determine the best way to deal with it.

1. Hex
   Torx
2. Phillips
   Posidriv

Torx wrenches and Torx sockets are not the most common shape you'll ever come across but some auto manufacturers like Mercedes use them frequently for things like suspension and head bolts.

1. Crow's foot wrench
   Gooseneck
2. Spark plug pliers
   Hex wrench

Every now and then you need to remove some spark plugs but a regular pair of pliers will destroy the boot and the wires. Spark plug pliers can come with curved and even padded jaws allowing for a firm grip that won't damage anything as you try to remove a tricky plug.

1. Tire inflator
   Wheel bearings
2. Run-flat tire
   Air compressor

A tire inflator is the most basic attachment you'll see on an air compressor and probably the one most average people are most familiar with. It should come with a gauge that measures PSI up to at least 100.

1. Spark tester
   Circuit clamp
2. Voltmeter
   Jump starter

A portable jump starter has many uses beyond just jumping a dead battery. A good quality one can be used up to 80 times on a single charge and can also work as an LED light as well as a charging station for phones and tablets.

1. Spark tester
   Multimeter
2. Wire Terminal
   OBD2 scanner

If a car engine isn't starting at all, there can be a few reasons for it but one of them is that there's no current reaching the spark plugs. If that's the case, pop one out and plug in a spark tester. It'll show right away if there's a current or not.

1. Wrecking bar
   Hydraulic vice
2. Rotary cutter
   Electric cut-off tool

An electric cut-off tool is indispensable for slicing through rusted-on nuts and fasteners as well as cutting through sheet metal bodywork, rusted-out exhaust pipes or any other light-to-medium metal.