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

Brief Overview

This 3/8-inch drive 12-point long hand socket is engineered for technicians who need reliable access to recessed fasteners in tight engine bays and confined spaces. The extended 63mm length delivers reach where standard sockets fall short, while the 12-point design reduces the risk of fastener rounding—a critical advantage in high-volume service environments. Whether you're stocking a full range of 12-point hand sockets for 3/8-inch drive systems or building specialized toolkit packages, this socket delivers consistent performance across the 8–24mm size spectrum.

Key Features

• Extended Length (63mm): Reaches recessed fasteners in confined spaces without extension bars
• 12-Point Design: Reduces cam-out and fastener damage compared to 6-point alternatives
• Chrome Satin Finish: Corrosion-resistant surface for durability in humid and salt-spray environments
• Knurled Grip Ring: Two-thirds down the body for secure hand-starting and improved control
• Precision Machined: Tight tolerances ensure smooth engagement with 3/8-inch drive ratchets and extensions
• Comprehensive Size Range: 8mm through 24mm in a single product family for fleet consistency

Technical Advantages

12-Point vs. 6-Point Performance: The 12-point profile makes contact at 30° intervals around the fastener head, rather than 60° intervals. This geometry dramatically reduces the rotational stress on corner edges, extending fastener life and reducing rework in high-volume shops.

Length Context: At 63mm overall length, this socket bridges the gap between standard 35–40mm sockets and deep sockets (typically 77mm+). This makes it ideal for:

• Spark plug access with recessed mounting
• Transmission pan bolt removal
• Engine block drainage points
• Suspension and steering fasteners in tight chassis cavities

Grip Design: The knurled ring positioned at approximately 40mm from the drive end allows one-handed socket seating—critical in overhead work or when working with a single ratchet while stabilizing the component.

Business Advantages for Distributors

• High-Velocity SKU: Extended-length hand sockets are frequently replaced in fleet service environments, creating steady reorder demand
• Set Compatibility: Pairs naturally with standard 3/8-inch drive socket sets and extension bars, encouraging basket size increases
• Mechanic Preference: Technicians actively request long sockets by name; this reduces search time and increases customer satisfaction
• OEM Specification Alignment: Fits into pre-packaged toolkit configurations for automotive and industrial customers
• Minimal Returns: 12-point design reduces fastener damage claims and callback work—improves customer retention

Technical Specifications

Size (mm)	Outer Diameter (mm)	Hex Width (mm)	Wall Thickness (mm)	Overall Length (mm)	Product Code
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 Specification

• Drive Type: 3/8-inch square recess (standard ratchet and extension compatible)
• Point Configuration: 12-point internal profile
• Material: Chrome-plated steel
• Finish: Satin chrome with knurled grip ring

Value Proposition for Resellers

Stock this socket family as a core rotation item. The extended length and 12-point design create differentiation versus commodity hex sockets, justifying modest margins while building customer loyalty. Pair with ratchets and extension bars to increase transaction value and position yourself as a complete toolkit source.