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The APEX 81664 is a long pattern combination wrench designed for professional trade use in mechanical, industrial, and maintenance applications. The 1-inch, 12-point box end and open end are forged from alloy steel, delivering the durability required for high-torque fastener work. The off-corner loading design on both ends provides a stronger grip on fasteners, reduces rounding, and delivers up to 25% more torque compared to standard corner-contact designs. At 14.035 inches in total length, the long pattern handle gives technicians added leverage in tight or deep-access situations.
This wrench is suited for HVAC equipment service, plumbing rough-in, electrical panel installation, and general mechanical work where a 1-inch fastener is common. The long handle pattern is especially useful when breaking loose or torquing down large fasteners on equipment frames, flanges, and structural connections. The 15-degree offset box end improves access in recessed or obstructed fastener locations. Size marking is stamped directly into the beam for permanent identification, making it easy to grab the correct tool without second-guessing.
Designed for use with 1-inch hex and 12-point fasteners in standard trade and mechanical service applications.
This wrench is used by licensed HVAC technicians, plumbers, electricians, and mechanical contractors for fastener removal and installation. Always ensure the wrench is fully seated on the fastener before applying torque to prevent slipping or rounding. Inspect the tool for cracks or deformation before each use and replace if damage is found.
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