Wera 05059530001 Phillips Power Screwdriver Bit No. 1

Product Description

The WERA 05059530001 is a No. 1 Phillips power screwdriver bit engineered for use with power tools and electric screwdrivers in professional trade applications. Built with a Bi-Torsion design, the bit absorbs peak torque loads at the drive end, reducing tip cam-out and extending service life under repeated high-cycle use. At 2 inches overall length, it fits standard 0.25-inch hex quick-change chucks common on impact drivers, electric screwdrivers, and drill-drivers. Electricians, HVAC technicians, and plumbers who drive Phillips fasteners in quantity will recognize the difference a purpose-engineered power bit makes over standard hand-driver bits.

This bit is suited for residential and light commercial trade work where a No. 1 Phillips drive is required. Typical applications include securing low-voltage wiring device screws, panel knockouts, sheet metal screws on HVAC equipment covers, and small-gauge fasteners encountered during fixture and equipment installation. The compact 2-inch length works well in standard bit holders and extension sets without excessive overhang.

Key Features

• Bi-Torsion zone absorbs torque spikes to reduce cam-out and tip wear
• No. 1 Phillips tip matches small-to-medium Phillips fasteners common in trade work
• 0.25-inch hex shank fits all standard quick-change bit holders and chucks
• 2-inch overall length suits most inline and pistol-grip power screwdrivers
• Designed for powered driving - not intended as a hand-driver bit

Compatibility

Designed as a replacement or supplemental power screwdriver bit for use in any 0.25-inch hex quick-change chuck compatible with standard 2-inch insert bits.

Installation Notes

Insert the 0.25-inch hex shank fully into the bit holder until the retention mechanism engages before driving. Set the tool clutch or torque setting appropriate for the fastener and base material to avoid overdriving. Power screwdriver bits are not rated for impact driver use unless specifically stated - verify tool compatibility before use. Inspect the tip for wear or rounding and replace the bit when cam-out frequency increases.