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The WIHA 71615 is a 1/4 inch hex drive insert bit designed for IP15 Torx Plus fasteners. At 25 millimeters (approximately 1 inch) overall length, it fits standard bit holders and impact-rated quick-change chucks used across HVAC, electrical, and plumbing service work. Constructed from steel, the bit is suited for repetitive fastener drive cycles where a secure fit to IP15 Torx Plus recesses is required. The 71615 ships in a quantity of 10 per package, making it a practical restocking unit for service vans and shop bins.
This bit is commonly used by HVAC technicians, electricians, and plumbers who encounter IP15 Torx Plus fasteners on equipment panels, electrical enclosures, and access covers. The 1/4 inch hex shank is the industry-standard drive size for screwdriver bit holders, power tool adapters, and inline nut drivers. The insert bit format is intended for use with bit holders or extension bars rather than direct chuck mounting. Applications span residential and light commercial service work where IP-profile Torx Plus fasteners appear on OEM equipment.
Designed for use with any standard 1/4 inch hex bit holder, extension bar, or quick-change chuck that accepts insert-style screwdriver bits.
Insert bits require a compatible 1/4 inch hex bit holder — do not attempt to seat directly into a drill chuck without an adapter. Ensure the bit is fully seated in the holder before applying torque to avoid tip slippage and fastener damage. Always de-energize and lock out equipment before removing or replacing fasteners on electrical panels, HVAC units, or plumbing access covers. Replace worn bits at the first sign of tip rounding to prevent cam-out damage to fastener recesses.
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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