Milwaukee Tool 48-20-9130 Hammer Drill Bit 1/2 in

Product Description

The MILWAUKEE TOOL 48-20-9130 is a carbide-tipped rotary and hammer drill bit designed for drilling into masonry materials including concrete, brick, and block. Built on a high-speed steel body with a 3-flat shank design, this bit delivers reliable torque transfer in compatible rotary hammer chucks. The 1/2-inch cutting diameter and 4-inch flute length make it suited for a wide range of anchor-setting and penetration tasks on job sites. With a percussion cutting geometry and two-flute construction, the bit efficiently clears debris during drilling. Licensed tradespeople performing concrete work will find this bit appropriate for standard rotary hammer applications.

This bit is intended for use in masonry applications including concrete block, poured concrete, and brick. It performs in rotary hammer drills equipped with 3-flat shank compatibility. Typical installation scenarios include anchor-hole boring for structural fasteners, conduit and pipe penetration through masonry walls, and general concrete drilling in both residential and commercial construction or renovation work. The 6-inch overall length provides reach without excessive flex on standard-depth applications.

Key Features

• Carbide-tipped percussion cutting head for durability in concrete, block, and brick
• 3-flat shank design ensures positive chuck engagement and reduced bit slip
• 1/2-inch cutting diameter with 4-inch flute length for common anchor and penetration depths
• Two-flute geometry aids dust and debris evacuation during drilling
• High-speed steel body provides toughness under hammer drill impact loads
• 6-inch overall length suits standard through-wall and surface drilling tasks

Compatibility

Designed as an OEM-style replacement and standard-use hammer drill bit compatible with rotary hammer drills accepting a 3-flat shank with 1/4-inch shank diameter.

Installation Notes

This bit is installed and used by licensed contractors, electricians, plumbers, and general tradespeople performing masonry drilling. Ensure the rotary hammer drill is powered off and unplugged before inserting or removing the bit from the chuck. Confirm the 3-flat shank is fully seated and locked in the chuck before operation. Use appropriate personal protective equipment including eye protection when drilling into concrete or masonry.