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The APEX 49-B-TX-15 is a T15 Torx power screwdriver bit designed for use with 1/4 inch hex drive power tools and hand drivers. It measures 3.5 inches in overall length, giving technicians enough reach to drive fasteners in tight or recessed locations. The body diameter is 0.15 inches (3.80 mm), suited for standard T15 Torx fasteners. This bit is built for repetitive power-driving applications where consistent torque transfer and fit are required. HVAC, electrical, and general mechanical technicians commonly use T15 Torx bits when servicing equipment panels, control boards, and enclosures secured with Torx fasteners.
This bit fits any 1/4 inch hex drive power screwdriver, impact driver, or bit holder. It is appropriate for both residential and light commercial service work where T15 Torx fasteners are present. Common applications include removing and reinstalling equipment access panels, electronic enclosures, and sheet metal components on HVAC units, electrical gear, and similar trade equipment. The 3.5 inch OAL provides additional depth clearance compared to standard-length bits, making it useful in recessed screw locations.
Compatible with any 1/4 inch hex drive power screwdriver, drill driver, or impact driver. Designed as a direct-fit replacement or supplemental bit for any tool accepting standard 1/4 inch hex shank power bits.
Insert the 1/4 inch hex shank fully into the bit holder or chuck before driving. Ensure the T15 Torx profile seats completely in the fastener head before applying torque to prevent cam-out and fastener damage. When used with an impact driver, select an appropriate torque setting for the fastener size and material. Inspect the bit tip for wear periodically and replace when the drive profile shows rounding or deformation.
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