Milwaukee Tool 48-20-7912 Sds-plus Carbide Drill Bit

Product Description

The MILWAUKEE TOOL 48-20-7912 is a carbide-tipped SDS-Plus rotary hammer drill bit engineered for masonry drilling applications. Part of the MX4 series, this bit features a 3/16 inch cutting diameter, a 6 inch flute length, and an 8 inch overall length. The SDS-Plus shank measures 13/32 inch in diameter, providing secure tool-free chuck engagement in any SDS-Plus compatible rotary hammer. Licensed electricians, plumbers, HVAC technicians, and general contractors rely on bits like this when penetrating concrete, block, or masonry for conduit runs, pipe penetrations, and equipment anchor points.

This bit is suited for residential and light commercial masonry work where a 3/16 inch bore is required. Typical applications include drilling pilot holes and anchor locations in concrete block, poured concrete, and brick. The carbide tip withstands the percussive force of SDS-Plus rotary hammers while maintaining cutting edge integrity across repeated use in hard substrates. Sold individually, this bit is also available in a 15-piece pack under the same part number configuration.

Key Features

• Carbide tip construction handles percussive rotary hammer drilling in masonry
• SDS-Plus shank provides tool-free bit changes and positive chuck retention
• 6 inch flute length promotes efficient debris clearance during drilling
• 8 inch overall length allows reach into deeper or offset drilling locations
• MX4 series design balances cutting speed and bit durability in concrete and block

Compatibility

Designed for use with any SDS-Plus rotary hammer accepting standard SDS-Plus tooling. Suitable for drilling into masonry substrates including concrete, brick, and block.

Installation Notes

Installation should be performed by a qualified tradesperson familiar with rotary hammer operation and applicable codes. Always wear appropriate PPE including eye protection and hearing protection when drilling masonry. Confirm the SDS-Plus bit is fully seated and locked in the chuck before operation. De-energize any nearby electrical systems and identify embedded conduit or rebar before drilling to avoid contact.