Ko-ken USA 3/8 Sq. Dr. 6 piece Z-series 6-Point Universal Metric - Koken

The Ko-ken USA RS3441MZ/6 3/8" Sq. Dr. 6-piece Z-series universal metric socket set is engineered for professional technicians requiring precise access in challenging, confined workspaces. This set combines a compact, thin-wall profile with innovative, integrated pinless universal joints and Ko-ken's signature NUT GRIP® technology, ensuring secure fastener retention and efficient torque transfer on modern automotive and industrial hardware.

Key Features

• Integrated Pinless Universal Joint Design: Each socket features a compact, pinless universal joint that provides a 50° swing angle for smooth articulation and controlled access in tight spaces. This design disperses the load across the entire outer circumference, offering durability comparable to traditional pin-type joints.
• Z-Series Thin-Wall Construction: The slim and compact Z-series design significantly enhances clearance in crowded engine bays, around intake manifolds, and near chassis components. Its reduced length and diameter make these sockets ideal for restricted areas without sacrificing quality or strength.
• NUT GRIP® Retention System: This magnet-free system utilizes a spring ring and ball bearings to securely hold non-magnetic fasteners within the socket, preventing drops and improving efficiency by eliminating the need to retrieve lost hardware.
• Secure 6-Point Fastener Contact: Engineered for optimal engagement with the flats of the fastener, this design reduces the risk of rounding and enhances torque transfer on stubborn metric bolts and nuts.
• Professional-Grade Durability: Constructed from precision-machined, high-strength Ko-ken alloy steel, these sockets are built for consistent, daily use in professional shops with both air and cordless ratchets.
• Comprehensive Metric Coverage: This 6-piece set includes commonly used metric sizes (8, 10, 12, 13, 14, 17 mm) for a wide range of import and domestic cars, light trucks, SUVs, and powersports equipment.

Applications

This universal socket set is indispensable for intricate engine work, accessing under-dash fasteners, and tackling transmission, transfer case, and chassis components where access is severely limited. It is well-suited for passenger cars, light trucks, SUVs, motorcycles, and powersports equipment, particularly for fasteners tucked behind brackets, frames, or body panels. The set also proves invaluable in industrial maintenance and equipment assembly environments where fasteners are located close to housings, guards, or other obstructions.

Specifications

• Manufacturer: Koken (Ko-ken USA)
• Model Number: RS3441MZ/6
• Drive Size: 3/8" square drive
• Type: Z-series 6-point universal metric NUT GRIP® socket set
• Pieces: 6
• Weight: 1.05 lb
• Dimensions (L x W x H): 13" x 4.75" x 2"