1/2" Drive 3/8" Extra Long Hex Bit - Stanley Proto Industrial Tools

The Stanley Proto J54413/8XL 1/2" Drive 3/8" Extra Long Hex Bit is engineered for professional technicians requiring consistent access to deep, recessed fasteners. This robust hex bit integrates seamlessly into standard 1/2" drive setups, providing optimal torque and control for intricate engine, drivetrain, and chassis work across a variety of vehicles.

Key Features

• Extended Reach Design: With an impressive 4-1/8 inches of bit length and a 5-5/8 inch overall length, this extra-long hex bit allows technicians to effortlessly reach fasteners buried deep within engine bays, transmission housings, and suspension components, eliminating the need for stacking multiple extensions.
• Precision 3/8" Hex Tip: The precisely machined 3/8" hex profile ensures solid engagement with internal hex fasteners, minimizing cam-out and preventing damage in high-torque applications.
• 1/2" Drive Interface: Designed for compatibility with any standard 1/2" drive ratchet, breaker bar, or torque wrench, this hex bit facilitates easy integration into existing professional tool kits.
• Industrial-Grade Durability: Manufactured by Stanley Proto Industrial Tools from heat-treated alloy steel with a polished chrome finish, this bit is built to withstand daily professional use and maintain dimensional accuracy under load, ensuring long-term reliability in demanding automotive and industrial environments.
• Optimal Torque Transfer: The bit holder features a hex opening that allows it to take the full load of torque, enhancing efficiency and power during fastening tasks.

Applications

This extra-long hex bit is ideal for engine work involving recessed hex fasteners found in intake manifolds, timing covers, valve train components, and accessory brackets on both domestic and import vehicles. It is commonly used on transmission and driveline assemblies, brake caliper brackets, suspension hardware, and underbody fasteners across light- and medium-duty trucks, vans, and commercial fleet vehicles. The J54413/8XL also serves industrial and plant maintenance applications where deep-seated 3/8" hex bolts are difficult to reach with standard hex bits.

Specifications

• Manufacturer: Stanley Proto Industrial Tools
• Model Number: J54413/8XL
• Drive Size: 1/2"
• Bit Size: 3/8" hex
• Bit Length: 4-1/8"
• Overall Length: 5-5/8"
• Weight: 0.42 lb
• Material: Heat Treated Alloy Steel
• Finish: Polished Chrome