Milwaukee Tool 48-20-5480 Rotary Hammer Drill Bit 3-9/16 in

Product Description

The MILWAUKEE TOOL 48-20-5480 is a carbide-tipped rotary hammer drill bit designed for heavy-duty core and anchor drilling in concrete, masonry, and similar hard substrates. Built with a spline shank for positive engagement in spline-drive rotary hammers, this bit delivers 3 inches of usable flute length and a 3.5625-inch (3-9/16 inch) cutting diameter. At 22 inches overall length, it reaches deep into slabs and walls for through-hole applications. The carbide tip and high-speed steel body handle the repeated impact loads that rotary hammer work demands. Licensed electricians, HVAC installers, plumbers, and general trade contractors use bits like this for conduit penetrations, anchor bolt holes, and equipment mounting in concrete structure.

This bit is suited for commercial and residential construction and mechanical trades where large-diameter holes through concrete or block are required. Typical applications include drilling penetrations for pipe sleeves, conduit risers, and structural anchors. The 22-inch overall length accommodates full-depth drilling through thick concrete walls or floor slabs in a single pass. Its spline shank is matched to spline-drive rotary hammer chucks commonly found on full-size demolition and core-drilling hammers used by trade professionals on job sites.

Key Features

• 3-9/16 inch (3.5625 inch) cutting diameter for large-bore penetrations
• Spline shank provides positive drive engagement and reduces bit slip under high torque
• Carbide-tipped cutting face handles repeated impact in concrete and masonry
• High-speed steel body construction supports the impact loads of rotary hammer operation
• 22-inch overall length allows single-pass drilling through thick slabs and walls
• 3-inch usable flute length channels debris out of the bore during drilling

Compatibility

Designed for use with spline-drive rotary hammers that accept standard spline shank drill bits for large-diameter concrete and masonry drilling applications.

Installation Notes

Installation and use should be performed by qualified trade professionals familiar with rotary hammer operation and applicable safety codes. Always power down and disconnect the rotary hammer before changing bits. Wear appropriate personal protective equipment including eye protection and hearing protection during operation. Follow the hammer tool manufacturer guidelines for maximum bit diameter and shank engagement depth.