Dual Foot Chuck 12" (17-398)
Description:
A dual foot chuck is a type of air chuck designed with two connection points, allowing it to easily access and inflate tires with hard-to-reach vale stems, particularly on dual-wheel vehicles like semi-trucks and RVs. It typically features a straight head and a 30-degree angled head to accommodate different valve stem orientations.
Features & Benefits:
Dual-Wheel Access: The primary function is to make it easier to inflate the inner tires on dual-wheel setups, which often have valves positioned in a way that's difficult to reach with a standard chuck.
Versatility: While ideal for dual wheels, they can also be used on other vehicles, including cars, motorcycles, and even some bicycles, especially if the valve stem is angled or recessed.
Dual Head Design: This is the defining characteristic, with one straight and one angled head to connect to different valve stem orientations.
Lock-on Mechanism: Many dual foot chucks feature a lock-on mechanism that secures the chuck to the valve stem, allowing for hands-free inflation.
Closed Flow: Some models are "closed flow" meaning air only flows when the chuck is properly engaged with the valve stem, preventing leaks when not in use.
Various Lengths and Materials: Dual foot chucks come in different lengths (e.g., 6 inches, 9.4 inches) and are often made from durable materials like brass with a protective finish.
Thread Connections: They typically have a 1/4" FNPT (female National Pipe Taper) connection for attaching to air hoses or inflators.