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The Milwaukee Electric Tool Corp 48-20-7434 is a 2-cutter SDS Plus rotary hammer drill bit engineered for use in SDS Plus rotary hammers across concrete, masonry, and block applications. The bit measures 1/4 inch in diameter with a 10-inch working length and an overall length of 12 inches, giving the user adequate depth capacity for anchor and conduit penetrations in structural masonry. The 2-cutter carbide tip geometry promotes faster material removal and extends bit life under repeated hammer-drill cycling. This bit is a standard trade tool for electricians, plumbers, HVAC installers, and general contractors who regularly drill anchor or sleeve holes in concrete substrates.
This bit is suited to residential and commercial jobsite work where SDS Plus rotary hammers are the standard drilling platform. Typical applications include setting concrete anchors for pipe hangers, conduit straps, equipment mounting brackets, and structural fasteners. The 12-inch overall length accommodates penetrations through thick CMU block or layered concrete assemblies without requiring an extension. It performs in both rotary-hammer and hammer-only modes on SDS Plus tool platforms.
Designed as an OEM-style replacement and standard consumable for SDS Plus rotary hammer tools. No specific model compatibility was stated in the available product data.
Install and remove this bit only when the rotary hammer is unplugged or the battery is removed. Confirm the SDS Plus chuck is fully seated and locked before drilling. Operators should wear eye protection and hearing protection per applicable OSHA and site safety requirements when drilling concrete or masonry. Do not use this bit in drill-only mode without confirming the tool supports that operating mode for SDS Plus accessories.
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