Koken 2350M-8 1/4 in. Drive Deep Nut Grip Socket 8mm 6-Point Metric

The Koken 2350M-8 is a 1/4 in. square drive deep metric socket featuring Ko-ken's proprietary Nut Grip® retention system. Sized at 8mm with a 50mm overall depth, this socket is engineered for professional technicians who need a reliable, hands-free fastener hold during installation and removal — especially in hard-to-reach areas.

The Nut Grip® system is Ko-ken's special design for securing nuts and bolts firmly inside a 6-point socket without the use of magnets. Two hardened steel balls are retained by a spring steel ring on opposing flats; when a fastener is seated, the balls deflect outward against the spring, locking the nut or bolt securely in place until intentionally released. This prevents dropped fasteners in confined spaces and overhead applications.

Key Features:

• Drive size: 1/4 in. (6.35mm) square drive
• Socket size: 8mm metric
• Overall length: 50mm (~1.97 in.) deep profile
• 6-point socket design for maximum torque transfer and reduced fastener rounding
• Non-magnetic Nut Grip® retention — two steel balls held by a spring steel ring
• Manufactured from premium chrome vanadium steel for durability and corrosion resistance
• Chrome finish for a polished, professional appearance
• Manufactured to DIN/ISO standards

The Koken 2350M-8 is ideal for automotive, mechanical, and assembly applications where secure fastener control is critical. Ko-ken's precision manufacturing heritage makes this socket a trusted choice among professional mechanics worldwide.