Milwaukee 48-20-7430 Sds Plus Drill Bit 1/4 in X 4 in

Product Description

The MILWAUKEE 48-20-7430 is a 2-cutter SDS Plus rotary hammer drill bit designed for general concrete drilling in both corded and cordless rotary hammer applications. Sized at 1/4 inches diameter with a 4-inch overall length and 2-inch working length, this bit features a variable flute geometry engineered for maximum debris extraction. The breaker point pulverizes material at the bore face for faster penetration, while enhanced rebar guards increase durability when drilling through hard aggregate and rebar. A reinforced flute reduces vibration and extends service life across demanding job site conditions. Licensed electricians, plumbers, and general contractors regularly rely on this bit class for anchor and sleeve installations in concrete substrates.

This bit is suited for residential and commercial concrete drilling tasks where anchor placement, conduit penetration, or fixture attachment requires precise, repeatable holes. The centering tip allows exact spot drilling without bit walk on hard surfaces. A wear mark indicator signals when the bit diameter no longer meets ANSI tolerance requirements, helping tradespeople maintain code-compliant hole sizing. The variable flute design is particularly effective in cordless rotary hammer platforms where battery efficiency directly affects productivity, delivering consistent performance in standard concrete.

Key Features

• 2-cutter SDS Plus shank fits standard SDS Plus rotary hammers
• Variable flute geometry maximizes debris extraction and drilling speed
• Enhanced rebar guards for durability in hard aggregate and rebar conditions
• Breaker point tip pulverizes material for faster penetration rates
• Centering tip enables exact spot drilling on hard concrete surfaces
• Wear mark indicator shows when bit no longer meets ANSI diameter requirements
• Reinforced flute reduces vibration and extends overall bit life

Compatibility

Designed for use with SDS Plus rotary hammers in corded and cordless configurations for general concrete drilling applications.

Installation Notes

Installation of this bit type is performed by licensed tradespeople or experienced contractors working with SDS Plus rotary hammers. Confirm the tool chuck is fully seated and locked before operation. Wear appropriate eye protection and dust control measures when drilling concrete, as required by OSHA standards. Inspect the bit for the wear mark indicator before each use to verify the diameter meets ANSI requirements for the intended application.

Technical Specifications

• Shank Type: SDS Plus
• Cutter Configuration: 2-cutter
• Bit Diameter: 1/4 inches
• Working Length: 2 inches
• Overall Length: 4 inches
• Application: General concrete, hard aggregate, rebar conditions
• UPC: 045242111626

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-20-7430