Description

Key Features

Deep Reach

The deep socket design gives you the clearance you need for long bolts and threaded studs where a shallow socket comes up short.

Chrome Vanadium Build

Premium chrome vanadium steel adds the strength and durability you want in a socket that will live in a box, cart, or service bag.

Better Grip

Knurled beauty rings help reduce hand slippage, which matters when your hands are greasy or you’re swapping sockets fast.

Overview

The DeWalt DWMT86045OSP Mechanics 6 Point 1/4 in Drive Deep Socket 5/16 in is a SAE deep socket built for turning 5/16 inch fasteners with a 1/4 inch drive ratchet, extension, or other matching drive tool. This is a deep socket designed for fastening and service work where extra reach matters. Model Number: DWMT86045OSP.

For anyone working on small fasteners in tight mechanical spaces, the deep profile is the real reason to buy this socket. It gives you more clearance over longer bolts and exposed threads than a shallow socket, which makes it a better fit for automotive work, equipment repair, and general shop tasks where hardware does not sit flush.

The 6-point opening is the right call when you want solid contact on hex fasteners. It is built to fit 5/16 inch SAE hardware, and the 1/4 inch drive size keeps it in the range of compact ratchets and low-profile setups that are common for lighter-duty service and assembly work.

DeWalt uses premium chrome vanadium steel here, which is the spec that actually matters for long-term durability. In plain terms, that means better strength in a hand-tool socket that is going to see repeated use, frequent tool-box movement, and the occasional less-than-gentle treatment on the job.

Another practical detail is the knurled beauty ring. That is not just there for looks. It helps cut down on slipping when you’re grabbing the socket with oily fingers or changing sizes quickly at the bench, under a hood, or during machine maintenance.

This is a straightforward single-socket buy for mechanics, maintenance techs, DIY users, and anyone filling gaps in a socket set instead of buying a whole kit again. If you need a dedicated 5/16 inch deep socket for a 1/4 inch drive setup, this is the kind of piece that earns its place because it handles a common size cleanly and does not waste space with extras you do not need.

Reach Longer Fasteners Cleanly

This deep socket is the right choice when standard socket depth is the problem. It gives you added reach for nuts sitting farther down on a stud, so you can stay with a compact 1/4 inch drive setup instead of switching tools.

• 5/16 inch SAE socket size for common small fasteners
• 1/4 inch drive interface for ratchets, extensions, and related hand tools

What’s in the Box

• (1) Deep Socket

Key Specifications

Drive Size	1/4 in
Socket Size	5/16 in
Point Type	6-Point
Measurement Standard	SAE
Material	Chrome Vanadium Steel
Socket Type	Deep Socket
Piece Count	1

Compatibility

Drive Tools

Fits standard 1/4 in drive ratchets, extensions, and other matching hand-drive tools.

Fastener Size

Sized for 5/16 in SAE hex fasteners.

Built For

Automotive Equipment Maintenance General Repair Mechanical Fastening Shop Use DIY / Hobbyist

Pro Tip

Keep a deep 5/16 inch socket in your 1/4 inch drive setup for studs and recessed nuts. It saves time because you do not have to step up to a larger ratchet just to get the extra reach.

Tool Nut’s Take

Tool Nut’s Take

Small Socket, Useful Size, No Nonsense

The DeWalt DWMT86045OSP Mechanics 6 Point 1/4 in Drive Deep Socket 5/16 in is exactly the kind of single replacement or fill-in socket that makes sense when you need one size to work right every time.

• Who it’s for: Mechanics, maintenance techs, and serious DIY users who need a dedicated 5/16 inch deep socket for a compact 1/4 inch drive setup.
• Why it stands out: Deep reach, chrome vanadium construction, and a knurled ring that actually helps when your hands are slick.
• Worth knowing: This is a single socket, not a set, so it is best for replacing a missing size or building out a custom socket lineup.

Common Questions

• What size fastener does this socket fit? It is a 5/16 in SAE socket designed for 5/16 inch hex fasteners.
• What drive size does it use? It uses a 1/4 in drive, so it fits standard 1/4 inch drive ratchets and extensions.
• Is this a deep or shallow socket? This is a deep socket, which gives added reach over long bolts and threaded studs.
• What is it made from? DeWalt lists premium chrome vanadium steel for strength and durability.