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The STANLEY 66-039 is a 6-piece jewelers precision screwdriver set built for fine, detail-oriented fastening work. These compact, slender-handled drivers are sized for small screws found in electronics, instruments, eyewear, and other precision assemblies. The set format means a technician has the right tip size at hand without searching for individual tools. Weighing just 0.33 pounds as a complete set, it stores and carries easily in a tool pouch or service bag. Licensed trade professionals and skilled DIYers who work on low-voltage controls, thermostat housings, panel covers, and similar hardware will find this set covers the most common miniature fastener sizes on the bench.
Precision screwdriver sets of this type are commonly used when servicing small-screw fasteners on electrical control panels, HVAC thermostat assemblies, junction box covers, and electronic components. The compact driver format is well suited to confined spaces where a full-size screwdriver cannot reach or maneuver. This set ships as a single unit and is sold per set with a minimum order quantity of one.
Designed as a general-purpose precision screwdriver set suitable for fine fastener applications across electrical, HVAC, and electronics service work.
Precision screwdrivers are a hand-tool item and require no power source. Always de-energize any electrical assembly before using screwdrivers inside control enclosures or on live boards, following NFPA 70E safe work practices. Select the correct tip size before applying torque to avoid cam-out and fastener damage on small-head screws. Store in a dry location to prevent tip corrosion.
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