Apex EX-250-4 Hex to Square Extension Bit 4 Inches

Product Description

The APEX EX-250-4 is a hex to square extension bit designed for use with power screwdrivers and impact drivers in professional trade applications. With a 0.25 inch drive size and a 4 inch overall length, this bit extension bridges hex-shank tool holders to square drive sockets or accessories. The pin lock design secures the connection under load, reducing the chance of the extension backing out during fastening operations. It is sold as a single piece and suits electricians, plumbers, HVAC technicians, and general contractors who need reliable bit extensions for production or service work.

This extension is suited for use in tight or deep access situations where a standard-length bit does not reach. The hex to square configuration allows a power tool with a hex chuck to drive square drive fasteners or attachments. The pin lock retention feature makes it practical for overhead work or confined spaces where dropped accessories create safety or productivity issues. It is compatible with standard power screwdrivers, cordless drills, and impact drivers equipped with a hex bit holder.

Key Features

• Hex to square extension configuration for connecting hex-shank tools to square drive accessories
• 0.25 inch drive size fits standard quarter-inch hex chucks
• 4 inch overall length provides reach in deep or recessed fastening locations
• Pin lock design holds the connection secure during powered operation
• Single-piece unit for straightforward replacement or addition to a tool kit

Compatibility

Designed as an OEM-style replacement or direct-fit extension for power screwdrivers and cordless drivers accepting a quarter-inch hex shank bit.

Installation Notes

Insert the hex shank end fully into the tool chuck before use and verify the chuck is tightened or the quick-release collar is fully engaged. Confirm the pin lock is seated on the receiving socket or accessory before applying power. Inspect the bit and extension for wear or damage before each use, and replace any component showing cracks or deformation. No special tools or codes are required for installation beyond standard power tool operating practices.