Socket

The Koken 3305A10 is a professional-grade deep-length, 12-point socket featuring a 3/8" square drive and a 5/16" hex opening. Made in Japan, this precision tool offers full-contact engagement and robust torque delivery. With a 55 mm body length, it’s ideal for accessing recessed fasteners in automotive, industrial, and maintenance applications.

Features:
*3/8" square drive ensures compatibility with standard ratchets.
*12-point (bi-hexagonal) configuration enables multiple contact angles for quick engagement and high torque capacity.
*Deep-socket length allows access to recessed and hard-to-reach fasteners.
*Flat Drive system maintains full surface engagement, reducing fastener wear and improving torque transfer.
*Constructed from cold-forged, heat-treated chrome molybdenum alloy, meeting DIN/ISO standards.
*Precision Japanese manufacturing ensures reliable performance and durability.

Specifications:
*Manufacturer: Koken
*Part Number: 3305A10
*Drive Size: 3/8" square
*Socket Opening: 5/16" (SAE)
*Point Type: 12-point deep socket
*Overall Length: 55 mm
*Material: Cold-forged chrome molybdenum alloy
*Country of Origin: Japan

Applications:
*Reaching recessed 5/16" hex fasteners in automotive engines, transmissions, and machinery assemblies.
*Industrial equipment servicing where standard sockets cannot access deep-set bolts.
*Maintenance and assembly tasks demanding high precision to prevent fastener rounding.
*General-purpose usage requiring deep sockets and full-contact surfaces for efficient torque transfer.
*Anywhere the Flat Drive design helps extend fastener life and tool longevity.