Milwaukee Electric Tool Corp 48-20-3988 Sds-max Bit

Product Description

The MILWAUKEE ELECTRIC TOOL CORP 48-20-3988 is an SDS-Max 4-cutter rotary hammer drill bit designed for heavy-duty concrete and masonry drilling. The 4-cutter carbide tip geometry improves material removal and reduces heat buildup during extended drilling. This bit measures 1.5 inches in diameter with an overall length of 23 inches and a working length of 18 inches, making it suited for deep-bore applications in structural concrete, block, and stone. It is installed by licensed electricians, plumbers, and general contractors who need to bore through reinforced slabs or thick masonry walls.

This SDS-Max bit is intended for use with SDS-Max rotary hammer tools in commercial and heavy residential construction settings. Typical applications include drilling anchor holes, conduit penetrations, and sleeve installations through concrete floors, foundations, and CMU block walls. The extended length supports deep-reach boring without extensions, reducing setup time on thick structural assemblies.

Key Features

• 4-cutter carbide tip for faster drilling and improved debris evacuation
• 1.5-inch diameter suitable for large-diameter anchor and penetration work
• 23-inch overall length with 18-inch working length for deep-bore applications
• SDS-Max shank for secure chuck engagement and full hammer energy transfer
• Designed for concrete, block, and masonry substrates

Compatibility

Designed as an OEM-style replacement and standard-fit bit for SDS-Max rotary hammer tools accepting the SDS-Max shank interface.

Installation Notes

SDS-Max bits are installed and used by electricians, plumbers, and construction trades operating rotary hammer tools. Always wear appropriate PPE including eye protection and hearing protection during operation. Ensure the rotary hammer is powered off and the bit is fully seated and locked in the chuck before beginning work. Follow applicable building and safety codes for concrete penetrations, including OSHA standards for hand and power tool use.

Technical Specifications

• Shank Type: SDS-Max
• Cutter Configuration: 4-Cutter
• Bit Diameter: 1.5 inches
• Working Length: 18 inches
• Overall Length: 23 inches
• Weight: 32.97 pounds
• Package Quantity: 8 per package
• Unit of Measure: EA

Standard Information

• Brand: MILWAUKEE ELECTRIC TOOL CORP
• Manufacturer Part Number: 48-20-3988