21mm WHEEL SOCKET - Astro Pneumatic

The Astro Pneumatic 78803-03 21mm Wheel Socket is engineered for professional automotive and industrial technicians who demand precision and protection during wheel service. This specialized 1/2" drive, thin-wall impact socket combines robust construction with innovative design to safeguard expensive wheels and lug nuts from marring and scratches. It is an essential tool for efficiently handling modern vehicle wheels that often feature recessed lug nuts and delicate finishes.

Key Features

• Durable Chrome Molybdenum Construction: Manufactured from industrial-grade chrome molybdenum steel alloy, ensuring exceptional strength and longevity for demanding impact use.
• Thin Wall Design: Features a thin-wall profile, allowing easy access into tight lug nut recesses where standard sockets may not fit.
• Protective Polymer Sleeve: Equipped with an external synthetic polymer sleeve that prevents direct metal-on-metal contact, thereby protecting wheels and lug nuts from scratches and damage.
• Six-Point Contact: Designed with a sturdy six-point configuration to distribute stress effectively and minimize the risk of rounding off lug nuts.
• Hollow Design: Incorporates a hollow interior that accommodates longer wheel studs and bolts by allowing the plastic insert to pass through.
• Impact-Ready: Suitable for use with hand, electric, or air impact wrenches, providing versatility across various workshop applications.

Applications

This 21mm wheel socket is ideal for a wide range of automotive maintenance and repair tasks, particularly when working on vehicles with aluminum, chrome, painted, or clear-coated wheels. It provides a secure fit for 21mm lug nuts, commonly found on numerous domestic and import vehicles. Professional mechanics rely on this socket for tire rotations, brake service, and wheel installations where preserving the aesthetic integrity of the wheel is paramount.

Specifications

• Manufacturer: Astro Pneumatic
• Model Number: 78803-03
• Size: 21mm (7/8")
• Drive Size: 1/2"
• Material: Chrome Molybdenum Steel
• Weight: Approximately 1.6 ounces