Draper Expert Metric Deep Socket Set on a Metal Rail, 3/8" Sq. Dr. (15 Piece)

The complete deep socket solution for a professional 3/8" drive setup — the Draper Expert 15-Piece Metric Deep Socket Set (D15MD/SR) brings together an unbroken run of 15 deep sockets from 8mm to 22mm, mounted on a durable metal storage rail built for permanent workshop installation. It is a set that combines the extended reach capability of deep socket engineering with Draper Expert's commitment to professional-grade build quality and long-term workshop organisation.

Why Deep Sockets Matter

Standard-depth sockets serve the majority of everyday fastening tasks well, but there are applications where they simply cannot achieve full fastener engagement — extended bolts, threaded studs, recessed nuts, and fixings with protruding thread all demand the additional internal clearance that only a deep socket can provide. Across the 8mm to 22mm metric range, these situations are encountered regularly in automotive servicing, suspension work, exhaust maintenance, engine component removal, and structural engineering applications. The D15MD/SR ensures you always have the right depth of socket to achieve secure, full engagement regardless of what the fastener presents.

6-Point Socket Geometry for Secure Drive

Every socket features a 6-point drive profile, maximising contact with the flat faces of the fastener rather than its corners. This even distribution of torque across the full bolt face significantly reduces the risk of rounding off fasteners — a critical advantage across the deeper engagement lengths of this set, where applying torque to a poorly fitting tool risks more costly fastener damage than a standard-depth socket would in the same situation.

Chrome Vanadium Steel — Hardened, Tempered and Micro Satin Finished

All 15 sockets are manufactured from chrome vanadium steel, hardened and tempered for lasting strength and durability across the full range of 3/8" drive applications. A micro satin chrome plate finish provides reliable corrosion resistance alongside a refined, low-glare appearance that outperforms standard polished chrome in brightly lit workshop environments — reducing reflective distraction during detailed repair work and offering better resistance to fingerprinting and light surface contamination through everyday use.

Knurled Ring for Fast, Confident Socket Changes

Each socket features a knurled grip ring, providing a positive tactile surface for secure, one-handed socket handling when fitting and removing by hand. Across a 15-piece deep socket set used daily in a busy professional workshop, the knurled ring meaningfully accelerates socket selection and changes — maintaining confident, sure-footed grip even with oily, damp, or gloved hands throughout the working day.

Metal Storage Rail — Built for the Professional Workshop

The D15MD/SR is supplied on a metal storage rail, offering the durability and permanence that a professional deep socket set of this quality deserves. The metal construction provides superior rigidity and long-term resistance to the flexing, cracking, and clip fatigue that plastic hanging rails can develop over time when carrying a full 15-socket deep set — where the additional length and weight of deep sockets places greater ongoing stress on the rail structure. Wall or pegboard mounted, the metal rail keeps the complete set permanently organised, clearly laid out by size, and immediately accessible throughout the working day.

The Complete Run — 8mm to 22mm Without Gaps

With 15 deep sockets covering every millimetre from 8mm through to 22mm, the D15MD/SR provides the most thorough 3/8" drive metric deep socket coverage available in this format — extending to the 20, 21, and 22mm sizes that many comparable sets stop short of, and ensuring no missing size ever sends you searching for a supplementary tool mid-job.

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 across demanding workshop applications.

What's Included

15 × 3/8" Sq. Dr. Deep Sockets: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22mm

Supplied on a metal storage rail.

Key Features

• 15-piece 3/8" square drive metric deep socket set on a metal storage rail
• Full unbroken deep socket range: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22mm
• Deep socket format for extended reach on recessed fasteners, studs and exposed threads
• 6-point geometry for maximum fastener contact and reduced rounding risk
• Knurled grip ring on every socket for secure, fast one-handed handling
• Manufactured from chrome vanadium steel — hardened, tempered and micro satin chrome plated
• Durable metal rail for permanent workshop wall or pegboard mounting
• Manufactured and tested to DIN3122 and ISO3315 specifications
• Product Code: D15MD/SR