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The PROTO J5239-10W is a T10 Torx bit socket designed for hand-drive use with a 3/8 inch drive. Built for professional tradespeople who need reliable torque transfer on Torx-head fasteners, this socket features a 1-23/32 inch overall length and a 5/8 inch bit length. The compact size suits confined-space fastener access common in HVAC equipment panels, electrical enclosures, and plumbing fixture assemblies. It is sold individually and intended for use in tool kits requiring precise Torx fitment without rounding or slipping on T10 fasteners.
This bit socket fits standard 3/8 inch drive ratchets, extensions, and torque wrenches. It is suited for residential and light commercial service work where T10 Torx fasteners appear on equipment covers, control panels, and access doors. HVAC technicians, electricians, and plumbers will find it useful during equipment service calls where Torx hardware is common on manufacturer-assembled components.
Designed as a standard 3/8 inch drive T10 Torx bit socket for use with compatible 3/8 inch drive hand tools including ratchets, breaker bars, and torque wrenches.
Verify the drive tool is rated for the torque required by the fastener application before use. Ensure the socket is fully seated on the drive tool and fully engaged in the fastener recess before applying torque to avoid fastener damage. De-energize and lock out electrical equipment before servicing panels or enclosures where Torx fasteners are present. Follow applicable codes and equipment manufacturer procedures during service.
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