DH12D Fixed Drive Head, 12D, 3/8"Sq Drive

Tohnichi DH12D is a durable fixed square drive head engineered as an interchangeable accessory for torque wrenches, enabling precise bolting in demanding assembly environments such as automotive production, machinery maintenance, and general industrial applications. Providing a reliable 3/8" square drive (12D size) for socket compatibility, this head ensures secure torque transmission without slippage, compatible with Tohnichi DB, DBN, and other series wrenches. Lightweight and compact with high-strength construction, it facilitates quick head swaps to adapt to various fastener sizes, promoting operator efficiency, reducing setup time, and maintaining accuracy in torque-sensitive workflows.

Key Performance Specifications

• Drive Size: 3/8" Square (9.53 mm insertion angle)
• Head Type: Fixed square drive (12D)
• Head Width: 22 mm
• Compatibility: Tohnichi DB, DBN, and interchangeable head torque wrenches
• Torque Capacity: Up to wrench rating (typically 10 - 100 N·m depending on wrench model)

Physical and Environmental Specifications

• Weight: 0.3 lbs (0.14 kg)
• Dimensions: 4" L x 2.5" W x 1.5" H (102 mm x 64 mm x 38 mm)
• Material: High-strength alloy steel with hardened finish
• Operating Temperature: 14°F to 104°F (-10°C to 40°C); suitable for standard workshop conditions
• Storage Conditions: Dry environment to prevent corrosion; indefinite shelf life

Key Features

• Secure Fixed Drive: Rigid square design ensures positive engagement with sockets, preventing slippage during high-torque applications
• Quick-Change Compatibility: Effortless attachment to Tohnichi wrench handles for rapid adaptation to different drive sizes and tasks
• Durable Hardened Construction: Alloy steel build withstands repeated impacts and loads, extending tool lifespan in industrial settings
• Compact Profile: Low-profile head minimizes interference in tight spaces, enhancing access during assembly operations
• Versatile Socket Use: Supports standard 3/8" sockets for bolting various fastener sizes, ideal for multi-task workflows
• Applications: Optimized for interchangeable head setups in automotive, machinery assembly, and maintenance; excels in precision bolting and torque auditing