Draper Expert Metric Deep Socket Set, 3/8" Sq. Dr. (12 Piece)

Precision engineering meets everyday practicality with the Draper Expert 12-Piece Metric Deep Socket Set (D9MD/6PT/E) — a comprehensive 3/8" drive deep socket set spanning 8mm to 19mm in single millimetre increments, delivering the extended reach and professional-grade quality needed for detailed automotive, engineering, and general maintenance work.

Deep Socket Format for Greater Versatility

Standard-depth sockets cover the majority of everyday fastening tasks, but deep sockets unlock a wider range of applications — fully engaging fasteners on extended bolts, threaded studs, recessed nuts, and fixings with protruding thread that shallow sockets simply cannot reach. Whether you're working on suspension components, engine ancillaries, exhaust systems, or precision machinery, the deep format of the D9MD/6PT/E ensures full fastener engagement and secure drive throughout.

6-Point Socket Geometry

Every socket in this set features a 6-point drive profile, maximising contact with the flat faces of the fastener rather than its corners. This distributes torque more evenly across the fastener, significantly reducing the risk of rounding off bolt heads and nuts — a critical advantage when working with smaller fasteners in the 8mm to 12mm range that are more susceptible to damage under poorly fitting tooling.

Chrome Vanadium Steel — Hardened, Tempered and Micro Satin Finished

All twelve sockets are manufactured from chrome vanadium steel, hardened and tempered for lasting strength and resilience across the full range of 3/8" drive applications. A micro satin finish provides reliable corrosion protection and a refined, low-glare surface appearance — practical in brightly lit workshop environments and more resistant to fingerprinting and light surface contamination than highly polished alternatives.

Knurled Ring for Confident Handling

Each socket features a knurled grip ring, providing a positive tactile surface for confident finger-and-thumb handling when fitting and removing sockets by hand. This is a particularly appreciated detail on mid-size drive sockets used in detailed work — ensuring secure, one-handed socket changes even with oily or gloved hands.

Complete Coverage from 8mm to 19mm

Spanning 8mm through to 19mm in unbroken single millimetre increments, this set covers the core metric range most frequently encountered across passenger vehicle servicing, light commercial maintenance, and general engineering applications — with no frustrating gaps in the size sequence to send you reaching for a separate set mid-job.

3/8" Square Drive — The Versatile Middle Ground

The 3/8" square drive strikes the ideal balance between the precision of 1/4" drive and the high-torque capability of 1/2" drive, making it the go-to choice for the vast majority of general workshop tasks. The D9MD/6PT/E pairs the mid-range torque capacity of 3/8" drive with the extended reach of deep sockets to create a set that genuinely performs across a wide range of everyday repair and maintenance scenarios.

Plastic Hanging Rail — Workshop and Toolbox Ready

The complete 12-piece set is supplied on a plastic hanging rail, keeping every socket organised, clearly visible, and immediately accessible by size. The rail can be wall or pegboard mounted for open workshop storage, or laid flat inside a toolbox drawer — providing flexible, space-efficient storage without the bulk of a traditional carry case.

Manufactured to DIN3122 and ISO3315 Standards

The set is manufactured and tested generally in accordance with DIN3122 and ISO3315 specifications, providing professional users with confidence in the quality, consistency, and performance of every socket.

What's Included

12 × 3/8" Sq. Dr. Deep Sockets: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm

Supplied on a plastic hanging rail.

Key Features

• 12-piece 3/8" square drive metric deep socket set
• Full size range in single millimetre increments: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm
• Deep socket format for extended reach on recessed fasteners and exposed threads
• 6-point geometry for maximum fastener contact and reduced rounding risk
• Knurled grip ring on every socket for secure finger-and-thumb handling
• Manufactured from chrome vanadium steel — hardened, tempered and micro satin finished
• Supplied on a plastic hanging rail for workshop or toolbox storage
• Manufactured and tested to DIN3122 and ISO3315 specifications
• Product Code: D9MD/6PT/E