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The APEX HC-100-1/2 is a female square drive specialty socket designed for SAE fastener applications requiring a 3/8 inch drive and a 1/2 inch spline interface. Built for trade and industrial use, this socket measures 1.5 inches in overall length and weighs 0.05 pounds, making it a compact but purpose-specific tool. The female square drive configuration allows it to accept male square drive fasteners, a design commonly required in HVAC equipment panels, plumbing fixture assemblies, and electrical enclosures where standard hex or torx profiles are not used. Licensed tradespeople and maintenance technicians rely on this socket type when servicing equipment with non-standard drive fasteners.
This socket is suited for residential and light commercial service work where 3/8 inch drive tooling is standard. It fits into existing 3/8 inch drive ratchets, extensions, and torque wrenches without adapters. Common applications include equipment disassembly, panel removal, and fastener-specific service tasks across HVAC, plumbing, and electrical trade work where female square drive geometry is specified by the equipment manufacturer.
Designed as a specialty replacement or service socket for applications requiring a 3/8 inch drive with a 1/2 inch female square spline interface in SAE configurations.
This socket is installed and used by licensed HVAC technicians, plumbers, electricians, and general maintenance trades. Always ensure the drive tool and socket are fully seated before applying torque to avoid rounding the fastener. Inspect the socket for wear or cracking before each use. Follow equipment manufacturer torque specifications when tightening fasteners with this socket.
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