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The WILLIAMS COMFORT PRODUCTS BITPH0401 is a Number 4 Phillips screwdriver bit designed for use with standard power and hand drivers. Weighing just 0.031 pounds, this compact bit is built for technicians who need reliable fastening performance in tight spaces or during routine service work. It is well-suited for HVAC, plumbing, electrical, and general trade applications where a larger Number 4 Phillips drive size is required. Licensed tradespeople and experienced service techs will find this bit a practical addition to their standard tool kit.
This bit is appropriate for use in residential and light commercial service environments. It fits standard 1/4-inch hex driver chucks common to impact drivers, drill drivers, and bit holders used across HVAC, electrical, and plumbing trades. The Number 4 Phillips profile is typically used for larger fasteners found in equipment panels, junction boxes, and mounting hardware encountered during installation and service calls.
Designed as a standard Number 4 Phillips screwdriver bit compatible with 1/4-inch hex driver chucks used across common power and hand driver tools in HVAC, electrical, and plumbing applications.
This bit is intended for use by trade professionals working with power or manual drivers. Ensure the bit is fully seated in the driver chuck before applying torque. Inspect the bit tip for wear before use, as a worn Phillips profile can strip fastener heads. Always follow applicable safety guidelines when operating power tools on or near energized equipment.
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