Apex EX-370-B-3 Hex to Square Extension Bit 3 in

Product Description

The APEX EX-370-B-3 is a hex to square extension power screwdriver bit designed for use with power screwdrivers and impact drivers in trade and industrial applications. It features a 1/4 inch hex drive shank and delivers a 3/8 inch square output, bridging common drive sizes in a single compact accessory. The overall length is 3 inches, making it suitable for standard-depth fastening tasks. Weighing just 0.05 pounds, this single-piece bit is a practical add-on for electricians, HVAC technicians, plumbers, and other trade professionals who need to adapt drive sizes without switching tools.

This extension bit is used wherever a tool with a 1/4 inch hex chuck needs to drive a 3/8 inch square drive socket or attachment. Common applications include panel work, equipment assembly, and mechanical fastening tasks in residential and light commercial settings. It is sold individually and is suited for both shop use and field service kits where drive adaptability is a frequent requirement.

Key Features

• Hex to square extension design converts 1/4 inch hex drive to 3/8 inch square output
• 3 inch overall length provides reach for standard fastening applications
• Lightweight at 0.05 pounds for easy handling and minimal tool weight addition
• Compatible with standard 1/4 inch hex chuck power screwdrivers and impact drivers
• Single-piece construction for straightforward use and storage

Compatibility

Designed as a direct-fit accessory for tools with a 1/4 inch hex drive chuck, providing a 3/8 inch square drive output for use with standard sockets and attachments.

Installation Notes

This bit is installed by inserting the 1/4 inch hex shank into a compatible power screwdriver or impact driver chuck and securing it per the tool manufacturer instructions. Ensure the tool is powered off and the chuck is fully released before inserting or removing the bit. Verify the 3/8 inch square output connection is fully engaged with the socket or attachment before operating the tool.