3/8-Inch Drive 12-Point Long Hand Socket, 8mm to 24mm Sizes

Overview

This 3/8-inch drive long hand socket delivers extended reach for accessing recessed nuts and bolts in confined engine bays, frame assemblies, and equipment cavities. The 12-point internal profile grips hex and 12-point fasteners with reduced cam-out risk compared to 6-point alternatives, while the elongated 63mm barrel design provides the clearance necessary for deep-set fasteners. A chrome-plated satin finish resists corrosion, and the knurled grip band near the drive end ensures secure hand control during operation. Available in 17 sizes spanning 8mm to 24mm, this socket integrates seamlessly into any professional 3/8-inch drive toolkit.

Pair these with complementary shallow-profile hand sockets for complete fastener coverage across both standard and deep-access applications.

Key Features

• 12-Point Internal Profile: Grips hex and 12-point fasteners with minimal slip risk; reduces fastener rounding on recessed bolts
• Extended 63mm Length: Reaches fasteners buried in recessed pockets and tight cavities where standard sockets cannot access
• Chrome-Plated Finish: Satin chrome coating resists rust and corrosion in damp workshops and outdoor storage
• Knurled Grip Band: Textured surface near drive end provides confident hand grip and reduces slippage during installation
• Precision-Machined Construction: Tight tolerances ensure secure seating on fasteners and compatibility with any 3/8-inch drive ratchet or breaker bar
• 17-Size Range: 8mm through 24mm coverage eliminates tool gaps for comprehensive metric fastener applications

Why Resellers Choose This Product

Margin Opportunity: The extended size range (8–24mm) across 17 individual SKUs allows bundled sales. Mechanics and technicians stock entire sets rather than single sockets, increasing transaction value per customer.

Workshop Essential: Long sockets represent a genuine need—not an impulse buy. Shops that encounter one recessed fastener per month will eventually stock them. Early adoption locks repeat customer loyalty.

Durability Confidence: Chrome-plated finish and precision machining reduce premature wear and fastener damage claims. Low return rates protect your reputation and margin.

Complementary Sales: Pair with deep-access ratchet handles or extension bars to create higher-value tool kits. Upsell opportunities are built into the product category.

Technical Specifications

Size (mm)	D1 (mm)	D2 (mm)	T (mm)	L (mm)	SKU
8	11.8	17	9	63	543208
9	13.2	17	9	63	543209
10	14.5	17	9	63	543210
11	15.7	17	12	63	543211
12	17	16	12	63	543212
13	18	16.5	12	63	543213
14	19.6	17	15	63	543214
15	20.9	18	15	63	543215
16	22	19	15	63	543216
17	23.4	20	15	63	543217
18	24.6	21	18	63	543218
19	26	23	18	63	543219
20	27.1	24	18	63	543220
21	28	25	18	63	543221
22	29.6	26	21	63	543222
23	31.6	27	21	63	543223
24	32	28	21	63	543224

Drive Size: 3/8-inch (9.5mm)
Profile: 12-Point (internal)
Overall Length: 63mm (all sizes)
Finish: Chrome-plated satin
Construction: Precision-machined alloy steel
Grip Feature: Knurled band on drive-end collar

Application Fit

Ideal for metric fastener work in:

• Automotive engine bay assembly and maintenance
• Motorcycle and ATV service (tight frame geometry)
• Industrial equipment maintenance (recessed mounting points)
• Precision machinery alignment and repair
• Frame and suspension work requiring deep access

The 8–10mm range suits electronics and precision assembly; the 16–24mm range handles heavy-duty industrial fasteners.

Value Proposition

Professional workshops cannot avoid recessed fasteners. By stocking this range, you position yourself as the go-to supplier for shops that encounter cam-out issues with shallow sockets or need longer reach for one-off jobs. Low cost-per-unit with predictable demand makes this a steady margin contributor. Bulk orders unlock tiered pricing and establish long-term reseller relationships with high-frequency purchasing mechanics.