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The APEX TWD-1 is a No. 1 Tri-Wing power screwdriver bit built for use with 1/4 inch hex drive power tools and bit holders. The bit measures 1 inch overall length and is engineered to engage Tri-Wing fasteners accurately under power, reducing cam-out and driver slip. Tri-Wing fasteners are common in consumer electronics, aerospace assemblies, and specialty equipment enclosures. This bit is sold individually and is suited for technicians and trade professionals who need a reliable, correctly sized driver for Tri-Wing fastener applications.
The TWD-1 fits any standard 1/4 inch hex quick-change chuck or bit holder, making it compatible with cordless screwdrivers, electric screwguns, and manual hex-drive handles. It is a practical single-piece addition to a technician toolkit wherever No. 1 Tri-Wing fasteners are encountered, including service calls on equipment with tamper-resistant or specialty hardware.
Designed for use with any 1/4 inch hex drive power screwdriver, cordless drill driver, or manual bit holder that accepts standard hex shank screwdriver bits.
Insert the 1/4 inch hex shank fully into the bit holder or quick-change chuck before driving to ensure secure seating and prevent bit ejection. Confirm the No. 1 Tri-Wing point size matches the target fastener before applying torque — using an incorrect point size can damage the fastener recess. Power down or disconnect the tool before changing bits. Follow applicable equipment service documentation when accessing fasteners on energized or pressurized systems.
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