Milwaukee 48-20-7431 Sds Carbide Drill Bit 1/4x4x6

Product Description

The Milwaukee Electric Tool Corp 48-20-7431 is a 44 Magnum SDS carbide drill bit designed for use with SDS rotary hammers in concrete, masonry, and similar hard-material drilling applications. The bit measures 0.25 inches in diameter with a 4-inch maximum drilling depth and an overall length of 6 inches. A four-flute design with unique tip geometry delivers up to 25% longer drilling life compared to standard bits while also improving cutting speed. Licensed trades including concrete specialists, electricians, and plumbers rely on this bit for anchor hole drilling, core layout, and penetration work.

This bit is suited for residential and commercial applications where an SDS rotary hammer is the tool of choice. Typical install scenarios include setting anchor bolts, drilling penetrations through concrete block or poured walls, and creating conduit pathways. The four-flute geometry aids in easier centering on the work surface, reducing bit walk at the start of a hole. Lower vibration transmission from the bit design contributes to user comfort during extended drilling operations.

Key Features

• Four-flute tip geometry provides up to 25% longer drilling life and faster cutting
• Compatible with any SDS rotary hammer chuck system
• Maximum drilling length of 4 inches suits common anchor and penetration depths
• Unique tip design allows easier centering and reduces bit walk
• Reduced vibration transmission improves user comfort during extended use
• Carbide construction delivers durability in concrete and masonry materials

Compatibility

Designed for use with any SDS rotary hammer, making it a standard replacement or supplemental bit for SDS-type hammer drill applications in masonry and concrete.

Installation Notes

SDS drill bits are installed and removed by licensed trades such as electricians, plumbers, and general contractors using SDS rotary hammers without additional tools. Always power down and unplug or de-energize the rotary hammer before changing bits. Wear appropriate PPE including eye protection and hearing protection during drilling operations. Follow applicable codes and job-site safety requirements when drilling into structural concrete or near embedded utilities.

Technical Specifications

• Bit Diameter: 0.25 inches
• Maximum Drilling Length: 4 inches
• Overall Length: 6 inches
• Flute Design: 4-flute
• Tip Material: Carbide
• Chuck Type: SDS
• Weight: 26 pounds
• Unit of Measure: EA
• Package Quantity: 200

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 48-20-7431