Description

Key Features

3/8 in. Drive

Built for 3/8 inch drive ratchets and extensions, so it fits right into a standard mechanic’s socket setup without adapters.

Deep Socket Reach

The deep socket design helps you reach nuts on longer studs and threaded fasteners that a shallow socket cannot clear.

6-Point Grip

A 6-point socket engages the flats of the fastener more directly, which is the right call when you want solid contact and less chance of rounding.

Overview

The DeWalt DWMT80016OSP Mechanics 6 Point 3/8″ Drive Deep Socket 5/16″ is a single SAE deep socket made for mechanic and general fastening work. This is a deep socket designed for tightening and removing 5/16 inch fasteners with a 3/8 inch drive ratchet or extension. Model Number: DWMT80016OSP.

What matters here is the combination of a 5/16 inch socket size, a 6-point opening, and a deep body. That setup is useful when you are working on longer studs or fasteners where extra socket depth keeps the tool from bottoming out before the socket reaches the nut.

The 6-point design is the practical choice for solid engagement on hex fasteners. Instead of spreading contact across more corners, it puts the load where it counts on the flats, which is why many techs reach for a 6-point socket when they want dependable grip.

The 3/8 inch drive size makes this socket a natural fit for everyday service and repair work. It works well in the middle ground where you want more leverage and durability than a smaller drive setup, without stepping up to a bulkier socket system.

This DeWalt deep socket is a straightforward piece in a mechanic’s tool lineup, but it fills an important role. If you do automotive work, equipment maintenance, shop repair, or home garage projects, having the correct deep socket size saves time and keeps you from improvising with the wrong tool.

For buyers who need one exact replacement or want to fill a missing size in a socket rail, this single-piece format makes sense. You are getting one SAE deep socket, not a full set, so it is best for someone who knows the size and drive they need.

Reach Fasteners on Longer Studs

A deep socket earns its keep when standard sockets run out of room. This one is sized for 5/16 inch SAE fasteners and gives you the extra internal depth needed for threaded studs and recessed hardware.

• 5/16 inch SAE socket size
• 3/8 inch drive for common ratchets and extensions
• 6-point opening for strong fastener contact

What’s in the Box

• (1) DeWalt DWMT80016OSP 5/16 inch deep socket

Key Specifications

Drive Size	3/8 in.
Socket Size	5/16 in.
Point Configuration	6-Point
Measurement System	SAE
Socket Type	Deep Socket
Pieces Included	1

Built For

Automotive Equipment Maintenance General Repair Garage Use Fastener Removal SAE Hardware

Tool Nut’s Take

Tool Nut’s Take

DeWalt DWMT80016OSP Mechanics 6 Point 3/8″ Drive Deep Socket 5/16″ Fills the Gaps in Your Set

This is the kind of single socket you buy because the right size and the right depth make the job go smoothly.

• Who it’s for: Mechanics, maintenance techs, and serious DIYers who need a 5/16 inch SAE deep socket for longer studs or recessed fasteners.
• Why it stands out: The 3/8 inch drive and 6-point design give it the everyday usability most people want for service work.
• Worth knowing: This is a single socket, not a set, so it is best for replacing a missing piece or adding a specific size to your lineup.

Common Questions

• Is this a deep or shallow socket? This is a deep socket.
• What drive size does it use? It uses a 3/8 inch drive.
• Is this SAE or metric? This socket is SAE.
• How many points does the socket have? It has a 6-point opening.