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The APEX EX-370-12 is a hex-to-square power screwdriver bit extension designed for use with power drivers and impact tools in trade and industrial applications. It features a 1/4 inch hex drive and a 12 inch overall length, giving technicians the reach needed to access fasteners in confined or deep cavities. The hex-to-square configuration allows a 1/4 inch hex shank power tool to drive square-drive bits or sockets. Electricians, HVAC technicians, and plumbers commonly use extended bit drivers when working inside panels, plenums, and tight mechanical spaces where a standard-length bit cannot reach.
This extension is suited for residential and light commercial service work where extended reach is required without changing the base tool. It is a single-piece unit compatible with standard 1/4 inch hex chuck power screwdrivers and drills. Typical applications include equipment installation, panel work, and mechanical fastening tasks where access depth or clearance is limited. The 12 inch length makes it particularly useful in deep equipment enclosures or when working through insulation and structural framing.
Designed as an OEM-style replacement and standard accessory for power screwdrivers and drills equipped with a 1/4 inch hex quick-change chuck.
Install this extension by inserting the 1/4 inch hex shank into the tool chuck and securing per the tool manufacturer instructions. Ensure the tool is powered off or the battery is removed before changing accessories. Verify that the square drive end is properly seated in the target bit or socket before applying torque. Follow applicable safety practices per NFPA 70E or site-specific electrical safety protocols when working near energized equipment.
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