Description

Key Features

Better Fastener Grip

DirectTorque technology helps the socket contact the flat sides of the fastener instead of riding the corners. That helps reduce rounding when you are working on small metric hardware.

Deep 6 mm Socket

This DEWALT deep socket gives you the extra reach needed for nuts on longer studs and recessed fasteners. The 1/4 inch drive size keeps it right at home in compact ratchets and socket sets.

Built for Repeated Use

Chrome vanadium steel delivers the strength you want in a daily-use mechanic’s socket, while the polished finish helps resist chipping and flaking. Knurled rings also give you a better grip when starting fasteners by hand.

Overview

The DEWALT DWMT86103OSP 6 mm 1/4 in Drive 6-Point Metric Deep Socket is a single deep metric socket built for turning 6 mm fasteners with a 1/4 inch drive ratchet or driver. This is a deep socket designed for fastening and loosening small metric nuts and bolts, especially where extra socket depth helps clear longer studs or recessed hardware. Model Number: DWMT86103OSP.

What matters most here is the combination of a 6-point opening and DEWALT’s DirectTorque design. On the job, that means the socket is made to grab the flats of the fastener more effectively, which can help reduce corner rounding compared to looser-fitting designs. For anyone working on smaller hardware, that matters. Once a 6 mm fastener starts to round, the job slows down fast.

The deep profile is the practical advantage that separates this socket from a standard shallow option. If you are working over longer threaded studs, dealing with recessed nuts, or reaching hardware that sits below the surrounding surface, the added depth gives you room a shallow socket does not. For maintenance work, assembly, and repair, that can save you from switching tools mid-task.

DEWALT uses chrome vanadium steel here, which is a common material choice for hand sockets because it balances strength and durability for repeated ratcheting work. The polished finish is there for more than looks. It helps protect the surface against chipping and flaking, and it is generally easier to wipe clean after greasy shop work. Hard-stamped markings also make size identification easier when the socket has been bouncing around in a drawer or rail with the rest of your set.

The knurled control ring is another small feature that makes sense in actual use. When your hands are oily, dusty, or gloved, that extra texture helps when you are placing the socket on an extension, pulling it from storage, or starting a fastener by hand before putting a ratchet on it. On a small 6 mm socket, details like that are worth having because fine hand control matters more on smaller hardware.

Compatibility is straightforward. This socket uses a 1/4 inch drive interface, so it is intended for 1/4 inch drive ratchets, extensions, and related hand-tool accessories. The 6 mm size and metric measurement make it a fit for metric fasteners, not inch-based hardware. If your work regularly moves between automotive trim, small engine repair, equipment service, or general mechanical fastening, this is the kind of size you end up reaching for more often than you think.

Who should buy it? Anyone filling out a metric mechanic’s socket set, replacing a lost 6 mm deep socket, or building a more focused service kit around small fasteners. It is a simple piece, but it solves a specific problem cleanly: reaching 6 mm metric hardware with a compact 1/4 inch drive setup while maintaining solid grip on the fastener.

Reach Longer Studs and Recessed Hardware

A deep socket earns its keep when a shallow one bottoms out before the fastener is fully seated. For small metric repair work, this helps you stay on the tool you already have in your hand instead of stopping to hunt for another option.

• 6 mm metric size for small nuts and bolts
• Deep well design for added reach over longer threads and recessed hardware
• 1/4 inch drive fits compact ratchets and extensions commonly used on smaller fasteners

What’s in the Box

• (1) DEWALT DWMT86103OSP 6 mm 1/4 in Drive 6-Point Metric Deep Socket

Key Specifications

Drive Size	1/4 in
Socket Size	6 mm
Point Configuration	6-Point
Measurement System	Metric
Socket Type	Deep
Material	Chrome Vanadium Steel
Weight	0.03 lbs
Finish	Polished Chrome Vanadium Finish

Compatibility

Drive Interface

Fits standard 1/4 inch drive ratchets, extensions, and other 1/4 inch square drive hand-tool accessories.

Fastener Size

Sized for 6 mm metric fasteners.

Built For

Automotive Mechanical Service Equipment Maintenance Metric Fastening Tight-Reach Fasteners DIY / Hobbyist

Pro Tip

Use this deep 6 mm socket when the nut sits on a stud and a shallow socket will not fully seat. It is an easy way to avoid partial engagement on small fasteners, which is exactly how corners get rounded.

Warranty & Support

No manufacturer’s warranty is listed for this product.

Tool Nut’s Take

Tool Nut’s Take

DEWALT DWMT86103OSP 6 mm 1/4 in Drive 6-Point Metric Deep Socket Is the Right Fix for a Missing Size

This is the kind of socket you buy when one small size keeps holding up the whole job, and honestly, that is reason enough.

• Who it’s for: Mechanics, maintenance techs, and serious DIY users who need a reliable 6 mm deep socket for metric hardware and do not want to fight rounded fasteners.
• Why it stands out: The deep profile, 6-point opening, knurled ring, and DirectTorque design all work toward the same goal: better control on small fasteners.
• Worth knowing: You are getting a single socket, not a set, and it is meant for 1/4 inch drive tools only.

Common Questions

• Is this a metric or inch socket? This is a metric socket, sized at 6 mm.
• What drive size does it use? It is made for a 1/4 inch drive ratchet or extension.
• Is this a 6-point or 12-point socket? This socket uses a 6-point configuration.
• What is the benefit of the deep design? A deep socket gives extra clearance for recessed fasteners and nuts threaded onto longer studs.