Socket

The Koken 3012M5204 is a precision InHex socket bit featuring a 3/8" square drive and a 4 mm internal hex output. With a 52 mm overall length and premium Japanese craftsmanship, it ensures secure, full-wall engagement and reliable torque performance. This tool is ideal for recessed fasteners in automotive, industrial, and mechanical applications, delivering consistent durability and accuracy.

Features:
*3/8" square drive ensures compatibility with standard ratchets and torque tools.
*4 mm InHex internal hex bit delivers full-wall contact for reduced rounding and slippage.
*52 mm length allows access to fasteners in recessed or confined spaces.
*Built to DIN/ISO standards for tight tolerances and secure drive engagement.
*Constructed from hardened chrome-alloy steel, cold-forged and heat-treated for toughness.
*Made in Japan for consistent precision and durability.

Specifications:
*Manufacturer: Koken
*Part Number: 3012M5204
*Drive Size: 3/8" square
*Bit Size: 4 mm internal hex
*Point Type: InHex bit socket
*Overall Length: 52 mm
*Outer Diameter (D2): Approximately 18 mm
*Height (H1): Approximately 15.5 mm
*Weight: Approximately 0.04 kg
*Material: Chrome-alloy steel, cold-forged and heat-treated
*Country of Origin: Japan

Applications:
*Ideal for driving 4 mm internal hex fasteners in deep or tight access situations.
*Suitable for automotive repairs, including engine components and brackets.
*Perfect for industrial machinery assembly and maintenance requiring full hex contact.
*Great for precision mechanical or electrical work where torque efficiency is important.
*Designed for professional environments demanding durable, accurate bit sockets.