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The WIHA 70020 is a T25 Torx power screwdriver bit designed for use with 1/4 inch hex drive power tools and impact drivers. The bit measures 1 inch in overall length and is sold in a 2-piece package, making it a practical choice for tradespeople who work through bits regularly. Its compact length suits tight-space fastening tasks common in HVAC panel assembly, electrical enclosure work, and plumbing fixture installation. The standard 1/4 inch hex shank seats securely in quick-change chucks without adapters.
This bit is suited for residential and light commercial service work where T25 Torx fasteners are encountered on equipment panels, junction boxes, access covers, and structural components. It pairs with any power driver or impact tool accepting a 1/4 inch hex drive. The 2-piece pack allows a spare to be kept on hand, reducing downtime during service calls. Technicians across HVAC, electrical, and plumbing trades will find this bit useful for routine fastener work on equipment enclosures and field assemblies.
Designed for use with any power driver, drill, or impact tool equipped with a 1/4 inch hex drive quick-change chuck.
Insert the 1/4 inch hex shank fully into the tool chuck before driving to ensure positive engagement and prevent cam-out. De-energize or power down any equipment before driving or removing fasteners on live panels or enclosures. Use appropriate torque settings on adjustable drivers to avoid stripping T25 Torx fastener heads. Inspect the bit tip for wear and replace if rounding is observed, as a worn tip increases the risk of fastener damage.
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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