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The MALCO 55132 is a cleanable, dual-sided hex driver designed for HVAC sheet metal installation and service work. Measuring 2-5/8 inches in length, it drives both 5/16-inch and 3/8-inch hex head fasteners without requiring a tool swap. The cleanable design allows debris and metal shavings to be cleared from the driver, maintaining consistent engagement with fastener heads over the life of the tool. This driver is suited for HVAC installers and sheet metal mechanics who work with self-drilling and self-tapping screws in ductwork assembly and equipment installation.
This hex driver sees everyday use in residential and light commercial HVAC installation and service. It is well matched for ductwork fabrication, sheet metal assembly, and equipment enclosure work where both 5/16-inch and 3/8-inch hex head fasteners are common. The compact 2-5/8-inch length allows it to fit into tight spaces typical in air handler cabinets, duct connections, and equipment panels.
Designed for use with standard 5/16-inch and 3/8-inch hex head sheet metal screws commonly used in HVAC ductwork and equipment installation applications.
This tool is used by HVAC technicians and sheet metal mechanics during ductwork assembly and equipment installation. Clean the driver regularly to remove metal shavings that can cause the hex tip to slip or strip fastener heads. Inspect the driver tips for wear and replace the tool if the hex geometry is visibly rounded. No power-down procedure is required for hand-tool use, but always follow applicable OSHA hand-tool safety guidelines on the job site.
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