Apex 4930-BX Phillips Power Screwdriver Bit No. 3 1/4 in Hex

Product Description

The APEX 4930-BX is a No. 3 Phillips power screwdriver bit designed for use with 1/4 inch hex drive power tools and impact drivers. With an overall length of 3-1/2 inches and a 1/4 inch hex shank, this bit fits standard 1/4 inch quick-change chucks found on most power screwdrivers and drills. The No. 3 Phillips tip engages larger fasteners commonly encountered in structural, HVAC equipment assembly, electrical panel work, and mechanical installations. At 0.044 pounds, it is a single-piece bit suited for professional trade use where consistent drive engagement and tip durability matter.

This bit is appropriate for any trade application requiring a No. 3 Phillips drive in a power tool format. HVAC technicians, electricians, and plumbers routinely use No. 3 Phillips fasteners on equipment enclosures, junction boxes, access panels, and mechanical assemblies. The 3-1/2 inch length provides added reach in recessed or obstructed fastener locations where a standard-length bit would not seat properly. It is sold as a single piece and is suitable for both bench assembly work and field service calls.

Key Features

• No. 3 Phillips tip for larger fastener engagement in power tool applications
• 1/4 inch hex drive shank fits standard quick-change power tool chucks
• 3-1/2 inch overall length provides reach in recessed or obstructed fastener locations
• 0.25 inch body diameter with 6.40 mm equivalent for consistent chuck seating
• Single-piece construction — sold individually for targeted replacement or supplemental use

Compatibility

Designed for use with any power screwdriver, drill driver, or impact driver equipped with a standard 1/4 inch hex quick-change chuck.

Installation Notes

Ensure the bit is fully seated in the chuck before driving fasteners. Verify the tip size matches the fastener recess before applying power — a mismatched No. 3 tip on a smaller recess will cam out and damage the fastener head. Inspect the tip for wear before each use; a worn Phillips tip transfers torque inefficiently and increases the risk of cam-out. No power lockout is required for bit changes on tools with quick-release chucks, but always follow the tool manufacturer safety guidelines.