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The MILWAUKEE ELECTRIC TOOL CORP 48-20-8888 is a SHOCKWAVE Impact Duty Carbide Multi-Material Drill Bit designed for use with impact drivers. Built from carbide, it handles demanding drilling applications across a range of materials including wood, metal, plastic, and masonry. The bit measures 5/16 inches in diameter with a 4-inch working length and an overall length of 6 inches. It is sold in a pack of three, making it a practical choice for service professionals who need reliable spares on the truck or at the jobsite.
This bit is suited for trade applications where a single drill bit must transition between material types without a tool change. Electricians, plumbers, HVAC technicians, and general contractors will find it useful for rough-in work that involves drilling through wood framing, metal studs, plastic conduit bodies, and masonry substrates in the same run. The impact-duty rating means it is engineered to handle the high-torque, high-shock output of impact drivers rather than conventional drill-drivers.
Designed for use with standard hex-shank impact drivers compatible with 5/16-inch multi-material carbide drill bits suitable for drilling in wood, metal, plastic, and masonry applications.
Installation is performed by trade professionals using a compatible impact driver with a hex chuck. Ensure the chuck is fully engaged with the bit shank before operation. When drilling into masonry, use appropriate dust control measures and confirm bit seating between passes to clear debris. Follow applicable OSHA and local safety codes for rotary tool operation on the jobsite.
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