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The APEX 49-A-TX-40 is a T40 Torx power screwdriver bit designed for use with 1/4 inch hex drive power tools. It measures 2.75 inches in overall length and features a body diameter of 0.31 inches (7.80 mm). Built for repetitive power-tool applications, this bit is suited for electricians, HVAC technicians, plumbers, and other trade professionals who rely on impact-rated or drill-driver tools to drive Torx fasteners quickly and consistently on the job site or in the shop.
The 49-A-TX-40 fits standard 1/4 inch hex quick-change chucks found on cordless drills, impact drivers, and electric screwdrivers. T40 Torx drive is commonly found on equipment panels, electrical enclosures, HVAC unit covers, and commercial fixtures. This bit ships as a single piece and is sized for medium-to-large Torx fasteners typical in mechanical and electrical trade work.
Designed for use with any power tool or hand driver accepting a standard 1/4 inch hex drive bit. Suitable for driving T40 Torx fasteners in HVAC equipment, electrical panels, plumbing fixtures, and general mechanical assemblies.
Install this bit into any 1/4 inch hex quick-change chuck before use and confirm it is fully seated. When using with an impact driver, select the appropriate torque setting to avoid fastener or bit damage. Inspect the bit tip for wear regularly, as a worn Torx profile can strip fastener heads. Replace the bit if the tip shows rounding or chipping.
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