Wera 05056404001 Phillips Power Screwdriver Bit No. 3

Product Description

The WERA 05056404001 is a No. 3 Phillips power screwdriver bit built for use with power drivers and impact-ready tool setups. Measuring 1 inch in overall length with a 0.25 inch drive size, this bit features Bi-Torsion construction, which incorporates a torsion zone that absorbs sudden torque peaks from power tools. This design reduces bit breakage and tip wear during high-cycle fastening work. The compact 1 inch length suits most quick-change chuck systems and is well matched to production, assembly, and service applications where controlled driving torque and bit longevity matter.

This bit is suited for use in residential and light commercial trade work, including electrical panel assembly, equipment installation, and general service tasks that require a No. 3 Phillips fit. The Bi-Torsion zone makes it particularly effective when used with electric screwdrivers, cordless drills, and impact drivers where torque spikes are common. Electricians, HVAC technicians, and general tradespeople who drive larger Phillips fasteners in sheet metal, junction boxes, and equipment enclosures will find this bit a practical daily-use option.

Key Features

• No. 3 Phillips tip for larger Phillips head fasteners common in trade applications
• Bi-Torsion zone absorbs torque peaks to reduce tip cam-out and bit breakage
• 1 inch overall length fits standard quick-change and power bit chuck systems
• 0.25 inch drive size compatible with common power driver and drill chuck configurations
• Compact form factor supports use in confined spaces and tight panel enclosures

Compatibility

Designed as an OEM-style replacement or standard power bit for use in 0.25 inch quick-change power driver systems accepting 1 inch insert bits.

Installation Notes

This bit is installed and used by electricians, HVAC technicians, and other tradespeople using power drivers or cordless drills. Ensure the power tool is powered off or the battery is removed before inserting or changing bits. Seat the bit fully into the chuck or quick-change holder before operation to prevent cam-out or bit ejection. Inspect the tip for wear regularly and replace when the Phillips profile shows rounding or damage.