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The WILLIAMS COMFORT PRODUCTS SDR-22-TH is a slotted screwdriver with a 3/16-inch blade width and a 3-inch round shank. It is a hand tool used for driving and removing standard slotted fasteners in HVAC, plumbing, electrical, and general mechanical service work. The round shank profile allows a wrench to be applied at the shank for additional torque on stubborn fasteners. Sold individually, this driver is a straightforward, single-purpose tool suited for technicians who need a compact, correctly sized blade for light-duty service tasks.
This screwdriver is suited for use in residential and light commercial service environments where 3/16-inch slotted fasteners are encountered. Common applications include panel cover removal, junction box work, equipment access door hardware, and general maintenance tasks on HVAC units, furnaces, water heaters, and similar trade equipment. Its compact 3-inch shank length makes it practical in tight equipment compartments where a full-length driver would be difficult to maneuver.
Designed for general use with standard slotted fasteners encountered in residential and light commercial HVAC, plumbing, and electrical service applications.
Always de-energize electrical equipment before using hand tools inside panels or junction boxes, following NEC guidelines for safe work practices. Ensure the blade width seats fully in the fastener slot before applying torque to avoid cam-out and fastener damage. Inspect the blade tip for wear or deformation before use, as a damaged tip reduces control and can strip fastener heads.
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