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The WERA 05059552001 is a PH2 Phillips power screwdriver bit built for use with impact drivers and power screwdrivers equipped with a 1/4 inch hex drive chuck. The bit features Wera's Bi-Torsion design, which incorporates a torsion zone behind the tip to absorb peak torque loads and reduce tip breakage during high-cycle fastening work. At 2 inches overall length, it fits standard bit holders and quick-change chucks used in production, service, and installation applications. This set contains 4 pieces. Licensed tradespeople and assembly technicians reaching for a reliable power bit for Phillips fasteners will find this format familiar and field-proven.
This bit is suited for residential and commercial installation work where PH2 Phillips fasteners are common, including electrical panel work, HVAC equipment assembly, plumbing fixture mounting, and general mechanical assembly. The 1/4 inch hex shank is the industry-standard drive size for power bit holders, making it broadly compatible with cordless drills, impact drivers, and dedicated screwdrivers used daily in trade environments. The Bi-Torsion zone is particularly useful in impact driver applications where sudden torque spikes can prematurely wear or snap conventional bits.
Designed for use with any 1/4 inch hex drive power screwdriver, cordless drill, or impact driver accepting standard power screwdriver bits. Fits industry-standard quick-change bit holders.
Install this bit into a 1/4 inch hex quick-change chuck or bit holder before use. Verify the chuck is fully seated and the bit is locked before applying power. When using with an impact driver, select the appropriate torque setting for the fastener and material to avoid overdriving. Inspect bit tips regularly and replace when cam-out or rounding is observed to prevent 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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