Apex Tool Group | | #4 INVERTED TORX SOCKET

Specifications

The #4 INVERTED TORX SOCKET, manufactured by Apex Tool Group, is an E4 (External Torx) socket designed for specialized fastening applications. It features a 1/4-inch square drive, ensuring compatibility with common ratchet and extension systems. Constructed from high-hardness chrome vanadium steel, the socket is engineered for strength and resistance to wear. A polished chrome finish provides corrosion resistance, enhancing the tool's longevity. Standard length for an E4 socket is typically around 23mm to 25mm (approximately 1 inch).

Key Features

• External Torx Profile: Specifically designed to engage with E-type (external) Torx fasteners, which feature a star-shaped protrusion rather than a recessed pattern.
• 6-Point Spline Design: Provides a secure grip on fasteners, which helps to prevent rounding and slipping during high-torque applications.
• Precision Machining: Ensures an exact and snug fit over corresponding external Torx bolt heads, contributing to reliable engagement.
• Durable Chrome Vanadium Steel: Offers high strength and wear resistance, suitable for demanding work environments.
• Corrosion-Resistant Finish: A polished chrome coating protects against rust and corrosion, extending the tool's lifespan and maintaining its appearance.
• Chamfered Lead-in: Designed for smooth and quick insertion onto fasteners, improving operational efficiency.

Applications

The #4 INVERTED TORX SOCKET is essential for tasks involving external Torx fasteners across various industries. It is commonly used in automotive repair for engine components, transmission systems, suspension assemblies, vehicle bodywork, interior frames, and electrical sensors. This E4 socket is also found in electronics, industrial machinery, and aerospace applications where precise torque control and tamper resistance are critical. Specific uses include working on European-manufactured machinery, medical devices, precision instrumentation, and certain General Motors ignition switches. It is also suitable for general home maintenance and DIY projects requiring this specific fastener type.

Benefits

• Prevents Fastener Damage: The precise fit and robust design minimize the risk of stripping or rounding external Torx bolts, preserving fastener integrity and reducing rework.
• Enhanced Durability: Constructed from resilient chrome vanadium steel with a protective finish, this socket withstands repeated use and high stress, offering long-term reliability.
• Optimal Torque Transfer: The external Torx design allows for greater torque transmission compared to other drive types of similar size, ensuring fasteners are tightened or loosened effectively.
• Improved Efficiency and Safety: The secure engagement and ease of use contribute to quicker task completion and reduce the likelihood of slippage, enhancing user safety and productivity.
• Access in Confined Spaces: The design of the external Torx socket, particularly smaller sizes like the E4, facilitates access to fasteners in tight or hard-to-reach areas.