5-1/2" Bit Extension

Milwaukee 48-28-4001 – 5-1/2" Hex Bit Extension

The Milwaukee 48-28-4001 is a 5-1/2 inch hex shank bit extension designed for extending the reach of drilling applications using compatible Milwaukee Selfeed, auger, and hole saw bits. It is built for use in demanding environments where precision and accessibility are required, particularly when working in tight or recessed locations.

Key Features

• Extension Length: Adds 5-1/2 inches to the reach of 7/16" hex-shank drill bits
• Secure Bit Retention: Utilizes a set screw and included hex key to firmly lock the bit in place
• Compatible Shank Size: Accepts bits with 7/16-inch hex shanks
• Application: Suitable for use with Selfeed, auger, and hole saw bits requiring extended access
• Construction: Manufactured with hardened steel for durability and long service life on job sites

Technical Specifications

• Shank Type: 7/16" hex
• Overall Length: 5-1/2 inches
• Attachment Method: Hex-wrench locking system
• Included: Hex key for set screw adjustment

Usage Considerations

Installation requires aligning the hex shank of the bit with the extension and tightening the set screw using the included hex key. Ensure a secure connection before operating to maintain safety and control during drilling. The extension is suitable for applications involving wood, structural materials, and when using large-bore cutting bits in confined spaces.

The Milwaukee 48-28-4001 bit extension provides added reach and secure tool engagement, offering a reliable solution for contractors needing consistent performance in confined or overhead drilling conditions.