In almost all 3/8 inch drive socket set sizes, SAE and metric sockets are available together. Below is the list of sizes that are frequently available:
- Common SAE (inch) sizes: 1/4”, 5/16”, 3/8”, 7/16”, 1/2”, 9/16”, 5/8”, 11/16”, 3/4”
- Common metric (mm) sizes: 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm.
What Is a 3/8” Drive Socket Set?

3/8 inch drive socket set is a set of sockets and tools that will fit various sizes of fasteners. These sets are used for multiple purposes ranging from car repair to housework. “3/8 inch drive” refers to the size of the square socket drive that connects to the ratchet handle.
Understanding Drive Size
Drive size refers to the measurement of the square-shaped hole in the socket. You must have a complete 3/8 drive socket size chart. For a 3/8” drive, this hole measures three-eighths of an inch across. You connect the socket to a ratchet or other tool using this opening. The drive size affects how much force you can apply and what types of bolts or nuts you can turn.
When to Use a 3/8” Drive Socket Set
You reach for a 3/8” drive socket set when you need to work on most household or automotive tasks. This set covers a wide range of bolt and nut sizes. You can use it to change spark plugs, assemble furniture, or fix a bike. The 3/8” drive socket set sizes give you enough options for most jobs without being too bulky or heavy.
Spoločný 3/8” Drive Socket Set Sizes

Keď sa pozriete na 3/8” drive socket set sizes, you see a wide range of options. These sets cover both SAE (imperial) and metric sizes. You can use them for many types of bolts and nuts. This section will help you understand what sizes you get in most sets.
SAE (Imperial) Socket Sizes
Which sizes are found in a 3/8-drive socket set? SAE socket sizes are in inches. These socket sizes are used in most American cars and old equipment. Here are some SAE socket sizes that you’ll encounter in a 3/8″
| Veľkosť (palce) | Typické použitia |
| 1 / 4 " | Electronics, small nuts and bolts |
| 5 / 16 " | Light fixtures, brackets |
| 3 / 8 " | Bicycles, small motors |
| 7 / 16 " | Spotrebiče, nábytok |
| 1 / 2 " | Car fixes, plumbing applications |
| 9 / 16 " | Automobilový priemysel, stroje |
| 5 / 8 " | Garden equipment, cars |
| 11 / 16 " | zavesenie |
| 3 / 4 " | Large bolts, heavy-duty |
Metric Socket Sizes
Metric socket sizes are measured in millimeters. These socket sizes are used in most new cars and imported tools. Below are common metric socket sizes in 3/8-inch drive socket set sizes:
- 8mm
- 9mm
- 10mm
- 11mm
- 12mm
- 13mm
- 14mm
- 15mm
- 17mm
- 19mm
The 10mm and 13mm sockets are most commonly used for car and bike bolts. The 3/8-drive metric socket sizes give you the flexibility to work on a wide range of projects.
Deep vs. Standard Sockets: Which One Is Right for You?

Looking at the socket set, you can see standard sockets and deep sockets. Both types of sockets are designed to help you complete certain tasks. Learning how to apply each of them will make your job easy and quick.
Standard Sockets
A standard socket is short. It is used for bolts or nuts near the surface. This socket fits in narrow places where additional depth is not required. In most cases, standard sockets are good for home tasks or garage work.
Advantages of standard sockets:
- Easy to work in narrow spaces
- Good for the majority of nuts and bolts
- Fits easily into the ratchet
Hlboké zásuvky
3/8 drive deep socket sizes have a longer construction. You should use deep sockets when the nut or bolt is deeply recessed or when the bolt is long. Deep sockets cover the bolt and grip the nut at its bottom.
Reasons to choose deep sockets:
- Helping to reach nuts on long bolts or rods
- Perfect choice for working with the car suspension and engine
- Provide you with more flexibility
6-hranné vs. 12-hranné objímky

While examining sockets, you will discover two main types: 6-point and 12-point. Every type has its own advantages. Understanding their differences is useful because it enables you to choose the appropriate tool.
Benefits of 6-Point Sockets
In fact, 6-point sockets fit the flat sides of a nut or a bolt. It means that these sockets give you good control over a nut or a bolt. There is a lower risk of slippage. Mechanics usually use these 3/8 drive SAE socket sizes for demanding work. If you need more torque, you may use 6-point sockets.
Advantages of 6-point sockets:
- Provide a good grip on fasteners
- Low risk of damaging bolts
- Effective for high-torque applications
Benefits of 12-Point Sockets
The second type is 12-point sockets. They are compatible with both hexagonal and double-hex fasteners. You will have more opportunities to fit them onto bolts, since there are more options for how to fit such sockets onto bolts. Such sockets are often used in situations requiring minimal torque.
Advantages of 12-point sockets:
- Easy to fit in limited areas
- Fast positioning of sockets on bolts
- Suitable for low-torque applications
Which Socket Type Is Better?
Choose the socket type depending on the nature of your project. You should opt for 6-point sockets for strength and safety. On the other hand, choose 12-point sockets for speed and flexibility. Most 3/8″ drive socket set sizes have both socket types to ensure you are prepared for anything.
| Typ zásuvky | najlepší | Hlavný prínos |
| 6-Point | Difficult, strong fasteners | pevnosť |
| 12-Point | Easy Task | Umiestnenie |
Záver
Now you know some of the common SAE sizes, which are 3/8″, 1/2″, and 9/16″, and metric sizes, which are 10mm, 13mm, and 17mm, of 3/8″ drive socket sets. Always check the set size and contents before purchasing. Consider your projects when choosing a set.
Často kladené otázky
What is meant by ‘3/8” drive’?
‘3/8” drive’ appears on sockets and ratchets. It means the square opening for the ratchet is 3/8 inch in diameter. The 3/8” drive is used for most medium applications.
Is it possible to use 3/8” sockets with a 1/2” ratchet?
Yes, there is an adapter which allows one to use 3/8” sockets with a 1/2” ratchet. An adapter allows the use of different sockets with different ratchets. One needs to ensure good tightness first.
How do you clean and organize your socket set?
One should clean sockets with a dry cloth after each time when they are used. It is recommended to keep them in special containers or cases labeled.
What are the differences between shallow and deep sockets?
The shallow sockets are used for surface bolts while deep sockets can reach bolts on long studs.
Why do some sets have both SAE and metric sockets?
The sets often contain both SAE and metric sockets. They are useful for working on both American and imported items.





