Milwaukee 48-20-8889 5/16x12 in Carbide Drill Bit 3-pack

Product Description

The Milwaukee Electric Tool Corp 48-20-8889 is a SHOCKWAVE Impact Duty carbide-tipped multi-material drill bit engineered for use with impact drivers and hammer drills. With a 5/16-inch diameter and 12-inch overall length, this bit is built to bore through tile, masonry, wood, metal, and plastic without changing tools. The carbide tip maintains cutting performance through abrasive materials where standard HSS bits fail prematurely. It arrives in a 3-pack, making it a practical choice for crews running multiple simultaneous installations or keeping spares on hand.

This bit suits residential and light commercial applications where tradespeople need to drill through mixed-material assemblies such as tile over concrete backer board, stucco, or layered wall systems. HVAC technicians, plumbers, and electricians commonly use multi-material bits when routing penetrations through finished surfaces. The 12-inch length provides the reach needed for deeper penetrations through thick walls or stacked materials without extensions.

Key Features

• Carbide tip for cutting through tile, masonry, wood, metal, and plastic
• SHOCKWAVE impact-rated shank designed to withstand high-torque impact drivers
• 5/16-inch diameter x 12-inch overall length for extended reach
• Multi-material design eliminates the need to swap bits between substrates
• 3-pack quantity supports multi-tech crews or provides on-the-job backup

Compatibility

Designed as an OEM-style replacement and general-use multi-material drill bit compatible with standard 1/4-inch hex shank impact drivers and keyed or keyless chuck drill/drivers.

Installation Notes

Installation should be performed by a qualified tradesperson familiar with rotary and impact drilling tools. Always wear eye protection and ensure the workpiece is secured before drilling. When drilling into tile or masonry, start at low speed to seat the carbide tip before applying full pressure. Confirm wall cavity contents using a stud finder or inspection tool before drilling to avoid contact with concealed electrical, plumbing, or gas lines.

Technical Specifications

• Diameter: 5/16 inches
• Working Length: 10 inches
• Overall Length: 12 inches
• Weight: 0.39 pounds
• Package Quantity: 3 per pack
• Unit of Measure: EA

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 48-20-8889