Wera 05057715001 Phillips Insert Bit No. 3 5/16 in Drive

Product Description

The WERA 05057715001 is a No. 3 Phillips screwdriver insert bit designed for use in power drivers, impact drivers, and bit holders with a 5/16 inch hex drive. The bit measures 1-1/4 inches in overall length, placing it in the standard insert-bit class used for hand-held and inline power tool applications. Manufactured to ductile and tough tolerances, this bit resists premature breakage under the torque loads common in production and service work. Licensed electricians, HVAC technicians, and plumbers reach for this type of bit when driving No. 3 Phillips fasteners in panel assemblies, equipment housings, and junction enclosures.

This insert bit is suited for residential and light commercial service work where a No. 3 Phillips drive is required. Typical applications include securing equipment access panels, electrical enclosure covers, and mechanical assembly hardware. The 5/16 inch hex shank fits standard bit holders and quick-change chucks found on most cordless and pneumatic drivers used in the trades. The compact 1-1/4 inch length works well in tight spaces where longer bits cannot seat properly.

Key Features

• No. 3 Phillips point size for large-fastener drive applications
• 5/16 inch hex drive shank fits standard trade-grade bit holders and quick-change chucks
• 1-1/4 inch overall length for use in confined spaces and inline drivers
• Ductile and tough construction resists premature breakage under high-torque loads
• Standard Phillips tool type for broad fastener compatibility

Compatibility

Designed as a standard insert bit for use with 5/16 inch hex bit holders, quick-change chucks, and bit-holder adapters compatible with No. 3 Phillips fasteners.

Installation Notes

Seat the bit fully into the bit holder or quick-change chuck before applying torque to prevent cam-out and tip wear. Always match the bit point size to the fastener recess size before driving. De-energize or lock out equipment before accessing fastened panels or covers in electrical and mechanical systems. Inspect the bit tip for wear or deformation before each use and replace if the tip is rounded or chipped.