Socket

The Koken 4012A6012 is a premium Japanese-made Inhex bit socket featuring a 1/2" square drive input and a 3/8" hex output. With an overall length of 60 mm, it’s designed for precision access and torque delivery in deep recesses. Engineered for high-performance industrial, automotive, and mechanical uses, it excels in tasks demanding strength and accuracy.

Features:
*1/2" square drive ensures secure fit with standard impact or ratchet handles.
*3/8" hex InHex- output provides full-wall engagement to reduce fastener rounding.
*60 mm overall length is ideal for tight or recessed fasteners.
*Full-contact design improves torque efficiency and reduces edge wear.
*Constructed from hardened, chrome-alloy steel, cold-forged and heat-treated for durability.
*Precision Japanese craftsmanship ensures reliability and consistency.

Specifications:
*Manufacturer: Koken
*Part Number: 4012A6012
*Input Drive: 1/2" square
*Output Size: 3/8" hex
*Point Type: InHex/internal hex bit
*Overall Length: 60 mm
*Outer Diameter (Drive End): 25 mm
*Hex Depth (H1): 15.5 mm
*Socket Depth (H2): 38 mm
*Weight: Approximately 0.07 kg
*Material: Chrome-alloy steel, cold-forged and heat-treated
*Country of Origin: Japan

Applications:
*Ideal for driving 3/8" internal hex fasteners using a 1/2" drive tool.
*Excellent for deeply recessed bolts in automotive, industrial, and machinery assemblies.
*Suitable for high-torque tasks in construction and fabrication environments.
*Suitable for precision mechanical or electrical installs requiring strong hex engagement.
*Durable enough for repeated use under heavy torque without rounding or wear.