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The MILWAUKEE ELECTRIC TOOL CORP 48-20-8984 is a 3/8-inch diameter glass and tile drill bit engineered for precision drilling in hard, brittle materials. Constructed from high-speed steel, this bit is designed to penetrate glass and ceramic tile without cracking or chipping the surface. Each package contains 5 bits, making it a practical choice for contractors, tile setters, and trade professionals who work through these materials on a regular basis. At 0.28 pounds per package, the set is compact and easy to store on the job site.
This bit is suited for residential and light commercial applications where drilling into glass panels, ceramic tile, porcelain backsplashes, and similar hard surfaces is required. It is commonly used by tile installers, glaziers, and general contractors during finish work and renovation projects. The 3/8-inch diameter is a standard size for fixture anchors, drain fittings, and similar penetrations through tile and glass substrates.
Designed as an OEM-style replacement or standard supply bit for use with 3/8-inch chuck rotary drills in glass and tile drilling applications.
Glass and tile bits should be installed by qualified tradespeople familiar with drilling hard, brittle surfaces. Use a variable-speed drill at low RPM with steady, moderate pressure to prevent cracking or spalling the material. Apply water or cutting fluid to the drill point to manage heat buildup during the operation. Ensure the work surface is secure and supported before beginning any penetration.
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