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The MALCO MSHCST is a reversible sawtooth hex driver designed for HVAC and roofing installation work. It combines two hex socket sizes - 1/4 inch and 5/16 inch - in a single compact tool, eliminating the need to carry multiple drivers on the job. The integrated sawtooth profile cuts through both soft and hardened sealant to free fasteners quickly without damaging surrounding material. Constructed from S2 hardened alloy steel, the driver is built to handle the repeated stress of field use. The removable and reversible design allows technicians to clean the socket and magnet easily between tasks.
This driver is suited for HVAC service and installation technicians, roofing contractors, and sheet metal workers who regularly drive hex fasteners through sealant-covered surfaces. It is particularly useful during equipment installation and removal where sealant buildup on fastener heads slows progress. The compact size makes it easy to maneuver in tight equipment spaces, and the dual hex socket configuration supports fast switching between fastener sizes without changing tools.
Designed for use with standard 1/4 inch and 5/16 inch hex-head fasteners commonly used in HVAC equipment installation and roofing applications.
This tool is intended for use by HVAC technicians, sheet metal installers, and roofing professionals. No power source is required - the driver is used with a compatible power drill or impact driver via its standard hex shank. Ensure the driver is fully seated in the chuck before use. Clean the socket and magnet periodically to maintain holding strength and prevent debris buildup that can affect fastener alignment.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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