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Angled view of a long 12-point hand socket showing the recessed end, long shaft and knurled collar.Perspective shot of a long socket showing the square drive recess and 12-point end with knurled collar.Upright top-down view of a long 12-point socket showing internal profile, knurled collar, and embossed marking.

3/8″ Drive 12-Point Long Hand Socket – Deep Access Design

Extended-reach 12-point hand sockets for precision fastening in confined spaces. Available in 8-24mm sizes with chrome-plated durability.

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Description

3/8″ Drive 12-Point Long Hand Socket – Deep Access Design

Brief Overview

This 3/8″ drive long hand socket delivers the extended reach needed for deep fastener access in tight engine bays, suspension work, and machinery assembly. The 12-point (double-hexagon) profile engages fasteners securely while minimizing corner rounding on delicate or stripped nuts and bolts. Built from chrome-plated steel with a knurled collar for controlled positioning, this socket handles precision work across the automotive, industrial, and equipment maintenance sectors. Available in a comprehensive size range from 8mm to 24mm, it pairs seamlessly with long-reach socket extensions and standard 3/8″ drive ratchets for maximum shop flexibility.

Key Features

  • 12-Point Profile: Double-hexagon recess engages fastener flats precisely, reducing cam-out on stuck or corroded fasteners
  • Extended Length Design: 28–30mm total length provides clearance in recessed or hard-to-reach mounting points
  • Chrome-Plated Finish: Corrosion-resistant coating protects against workshop moisture and extends tool life
  • Knurled Collar: Textured grip ring near the drive end ensures controlled hand positioning and prevents slipping during torque application
  • Standard 3/8″ Drive: Compatible with all 3/8″ drive ratchets, extensions, and accessories—no adapter required

Why Resellers Choose This Range

Turnover & Margin: Long sockets command a 35–50% resale premium over standard-depth alternatives due to their specialized application. Stock depth, not breadth, drives customer loyalty.

Customer Retention: Once a technician discovers how a long socket solves a recurring access problem, repeat orders follow. These are not impulse purchases—they're solution-driven.

Complete Socket Coverage: The 8–24mm range covers 95% of metric fastener demand in automotive assembly, engine work, and light industrial maintenance. Resellers gain the ability to position themselves as a one-stop solution rather than directing customers elsewhere.

Low Defect Rate: Chrome-plated steel sockets have minimal field failures. Returns are rare, support costs are negligible, and customer satisfaction translates to glowing reviews.

Technical Specifications

Size (mm) D1 (mm) D2 (mm) T (mm) L (mm) SKU
8 11.8 17 8 28 523208
9 13.2 17 8 28 523209
10 14.5 17 8 28 523210
11 15.7 17 8 28 523211
12 17 16 8 28 523212
13 18 16.5 8 28 523213
14 19.6 17 12 28 523214
15 20.9 18 12 28 523215
16 22 19 12 28 523216
17 23.4 20 12 30 523217
18 24.6 21 12 30 523218
19 26 23 14 30 523219
20 27.1 24 14 30 523220
21 28 25 14 30 523221
22 29.6 26 14 30 523222
23 31.6 27 14 30 523223
24 32 28 16 30 523224

Drive Standard: 3/8″ square (10mm)
Material: Chrome-plated steel
Finish: Satin chrome with embossed markings
Fastener Profile: 12-point (double-hexagon)

Real-World Applications

  • Automotive Assembly: Engine oil filter housings, thermostat covers, and exhaust manifold fasteners in confined spaces
  • Suspension & Steering: Strut tower caps, tie-rod ends, and control arm mounting in tight underbody geometry
  • Industrial Equipment: Bearing housings, motor mounts, and transmission mounting bolts where standard sockets cannot reach
  • Precision Maintenance: High-value fasteners (aircraft hardware, medical equipment) that demand 12-point protection against deformation

Value Proposition for Your Shop

Stock these sockets with confidence. The long profile addresses a genuine access challenge that customers encounter repeatedly. Unlike gimmick tools, long sockets sell themselves through repeated customer request. Build your margin, reduce inventory bloat by stocking one tight range, and watch technician satisfaction and repeat orders climb.