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The APEX EX-250-B is a hex-to-square extension power screwdriver bit designed for use with power drivers and impact tools in professional trade applications. It features a 1/4 inch hex drive and an overall length of 1-3/8 inches, making it a compact, direct-fit extension for fastening tasks in tight or standard-access areas. Electricians, HVAC technicians, plumbers, and general contractors use this type of bit when working with power screwdrivers or drill-drivers on equipment panels, junction boxes, and mechanical assemblies. The bit is sold as a single piece and is compatible with standard 1/4 inch hex chuck systems.
This bit is suited for both residential and light commercial applications where a 1/4 inch hex drive connection is required. Its 1-3/8 inch overall length provides a low-profile extension between a power driver chuck and a socket or fastener head, useful in confined spaces common to mechanical rooms, electrical enclosures, and equipment installations. It is a standard consumable or tooling accessory stocked by tradespeople across multiple disciplines.
Designed for use with power screwdrivers and drill-drivers equipped with a standard 1/4 inch hex chuck. No specific model compatibility data was provided by the manufacturer for this part.
Insert the hex shank fully into the tool chuck before operating to ensure secure seating and prevent slippage. Confirm the drive end is properly engaged with the socket or fastener before applying torque. Inspect the bit for wear or deformation before each use and replace if damage is observed. No special licensing or code requirements apply to the use of this accessory bit.
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