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The MILWAUKEE ELECTRIC TOOL CORP 48-20-9009 is a SHOCKWAVE Impact Duty carbide hammer drill bit designed for masonry drilling in demanding job-site conditions. Measuring 7/32 inches in diameter with a 6-inch overall length and a 4-inch working depth, this bit delivers consistent performance when driving through concrete, block, and similar masonry substrates. The carbide tip is engineered to withstand the high-impact forces generated by rotary hammer and hammer drill operation. This bit is sold as a package of 3 units, making it a practical choice for contractors and tradespeople who need reliable spares on hand.
This bit is suited for residential and light commercial masonry applications, including anchor installation, conduit penetrations, and structural fastening tasks. Electricians, plumbers, HVAC technicians, and general contractors routinely use carbide hammer drill bits like the 48-20-9009 when securing equipment, brackets, and penetrations through poured concrete or concrete masonry units. The 7/32-inch diameter is a common size for anchoring fasteners and setting sleeve anchors in light-duty structural applications.
Designed as an OEM-style replacement and standard consumable for use with rotary hammer drills and hammer drills accepting standard round or SDS-style shanks compatible with the 7/32-inch bit diameter.
Carbide hammer drill bits should be installed and used by qualified tradespeople familiar with rotary hammer or hammer drill operation. Ensure the drill is powered off and the bit is fully seated and secured in the chuck or SDS holder before drilling. Always wear appropriate eye protection and hearing protection when drilling masonry. Follow applicable OSHA silica dust exposure guidelines when drilling concrete or masonry materials.
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