Description:

Key Features

6-Point Grip DirectTorque technology is built to grip fasteners more securely and help reduce rounding. That matters most when you're leaning on stubborn nuts and bolts with a hand ratchet. Deep Socket Reach This DeWalt deep socket gives you the extra clearance needed for longer studs and recessed fasteners. It is a better choice than a standard socket when the threads extend past the nut. Jobsite-Proof Finish The polished chrome vanadium construction is made for strength, while the chrome finish helps resist chipping and flaking. Hard-stamped markings and a knurled control ring make it easier to grab and identify in a busy toolbox.

Overview

The DeWalt DWMT88988OSP 3/8-In. (9.5mm) Drive 6-Point 9/16-In. (14mm) Standard SAE Deep Socket is a single deep hand socket for turning 9/16 inch fasteners with a 3/8 inch drive ratchet or extension. This is a deep socket designed for fastening and loosening nuts and bolts on longer studs or in recessed locations. Model Number: DWMT88988OSP.

What makes this socket worth buying is the combination of a 6-point opening and DeWalt's DirectTorque design. On the job, that means better contact on the flats of the fastener instead of loading the corners as aggressively as a weaker fit can. If you work on older hardware, rusty fasteners, or anything that already looks a little tired, that extra grip can save you from rounding off the head and turning a simple repair into a bigger problem.

The deep profile is the real functional advantage here. A standard socket works fine until the stud sticks too far through the nut or the fastener sits down in a pocket. This deep socket gives you the reach to get over that extra thread length without switching to a workaround. For automotive work, equipment repair, general shop use, and around-the-house mechanical jobs, that is the difference between getting the job done cleanly and wasting time hunting for a different setup.

DeWalt also kept the everyday details right. The polished chrome vanadium finish is there for strength and durability, and the chrome exterior helps resist chipping and flaking over time. The knurled control ring gives you a little more grip when you are spinning the socket by hand onto a fastener, especially if your hands are oily or you are working in a tight spot where a full ratchet swing is awkward.

Hard-stamped size markings are another small feature that matters more than people think. Sockets get tossed into drawers, trays, pouches, and service carts, and laser-light markings do not always stay easy to read after real use. A clearly marked 9/16 inch deep socket is faster to grab when you are moving through repetitive service work and do not want to stop and squint at every piece.

This is an individual socket, not a set piece with extra accessories attached to it. That makes it a good fit for mechanics, maintenance techs, contractors, and serious DIY users filling a missing size in a kit or replacing a socket that sees heavy use. If you already run a 3/8 inch ratchet system and need a dependable 9/16 inch deep socket for mechanical fastening, this is the straightforward, no-nonsense choice.

DeWalt DWMT88988OSP 3/8-In. (9.5mm) Drive 6-Point 9/16-In. (14mm) Standard SAE Deep Socket for Tight Mechanical Work

This deep socket is built for the kind of fasteners that make a shallow socket useless. When a nut sits on a long stud or down inside a recessed area, the added depth gives you the reach to stay productive without improvising.

• 3/8 inch drive fits common hand ratchets and extensions
• 9/16 inch socket size handles standard SAE fasteners
• 6-point design helps hold fasteners more securely under load

What's in the Box

• (1) DeWalt DWMT88988OSP 3/8 in. Drive 6-Point 9/16 in. Deep Socket

Key Specifications

Compatibility

Ratchet Interface Fits standard 3/8 in. drive ratchets, breaker bars, and extensions. Fastener Type Designed for 9/16 in. SAE hex fasteners.

Built For

Automotive Mechanical Repair General Maintenance Equipment Service Garage and Shop Work DIY / Hobbyist

Pro Tip

Use this 6-point deep socket when a 9/16 inch nut sits on a long stud or already shows wear on the corners. It gives you better engagement than a shallow socket and is the smarter pick when you want to avoid chewing up older hardware.

Tool Nut's Take

Tool Nut's Take

Small Tool, Big Difference in the Drawer

The DeWalt DWMT88988OSP is exactly the kind of deep socket you appreciate when the fastener is buried, the stud is long, and you do not have time for nonsense.

• Who it's for: Mechanics, maintenance crews, contractors, and DIY users who already run 3/8 inch drive tools and need a dependable 9/16 inch deep socket.
• Why it stands out: The 6-point DirectTorque design is the big one here. Better grip on the fastener means less chance of rounding things off when the work gets stubborn.
• Worth knowing: This is a single socket, not a set. If you are replacing a missing size or building out a service kit one piece at a time, that is actually a plus.

Common Questions

• Is this a deep socket or a standard shallow socket? This is a deep socket, made to reach over longer studs and into recessed fastener locations.
• What drive size does it use? It uses a 3/8 inch drive.
• What fastener size does it fit? It is sized for 9/16 inch SAE fasteners.
• Is it a 6-point or 12-point socket? It is a 6-point socket.