1/2" Drive x 3/8" Impact - Steelman

Introducing the Steelman PRO 79991 1/2-Inch Drive, 3/8-Inch Pinless Swivel Impact Extension, a professional-grade tool engineered to deliver maximum power and flexibility in confined workspaces. This 9-inch extension is indispensable for automotive technicians and industrial mechanics who regularly encounter fasteners in challenging, hard-to-reach areas. Its innovative pinless swivel design ensures superior torque transfer and enhanced safety, making it a reliable addition to any professional toolkit.

Key Features

• Optimized Torque Transfer: The advanced pinless joint design minimizes power loss, transferring more usable torque to fasteners compared to traditional universal joint designs.
• Enhanced Safety: Engineered for professional environments, the pinless construction eliminates the risk of flying projectiles that can occur with pinned universal joints upon failure.
• Superior Flexibility: A swiveling head provides a wide range of motion, allowing technicians to engage fasteners from multiple angles in restricted spaces.
• Durable Construction: Crafted from heat-treated 4140 chromoly steel with a protective black oxide finish, this impact extension is built to withstand rigorous daily use in demanding automotive and industrial settings.
• Extended Reach: The 9-inch length provides essential extra reach, enabling access to deep-set or obstructed fasteners that standard extensions cannot reach.

Applications

The Steelman PRO 79991 is ideal for a variety of professional applications where precision, power, and access are critical. It excels in automotive repair for reaching engine bay components, suspension fasteners, or exhaust system bolts. In industrial settings, this extension is perfect for machinery maintenance, assembly, and any task requiring robust impact performance in tight quarters. Its 1/2-inch female drive connects seamlessly with impact wrenches, while the 3/8-inch male end accommodates a wide range of impact-grade sockets.

Specifications

• Manufacturer: Steelman
• Model Number: 79991
• Product Name: 1/2-Inch Drive, 3/8-Inch Pinless Swivel Impact Extension
• Input Drive Size: 1/2-inch Female Square
• Output Drive Size: 3/8-inch Male Square
• Overall Length: 9 inches
• Material: Heat-treated 4140 Chromoly Steel
• Finish: Black Oxide
• Approximate Weight: 0.61 - 0.63 lbs