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The MILWAUKEE ELECTRIC TOOL CORP 48-20-8990 is a 1/8 inch drill bit engineered for cutting through tile and natural stone. This bit is designed to deliver clean, controlled holes in hard, brittle materials where standard twist bits would crack or chip the surface. Sold in a 5-piece pack, it gives tile installers and remodelers a reliable supply for repetitive boring tasks. The small 1/8 inch diameter makes it well-suited for pilot holes, fixture anchor points, and grout line penetrations in ceramic, porcelain, and natural stone substrates.
This bit is used in residential and light commercial tile installation and remodeling work. Typical applications include drilling through wall tile for plumbing or electrical rough-in, setting anchors in stone countertops, and creating starter holes in floor tile. It is a standard tool for tile setters, plumbers roughing in through tiled walls, and electricians running conduit or mounting hardware in tiled spaces.
Designed for use in tile and natural stone drilling applications as a 1/8 inch diameter bit compatible with standard rotary drills and drill-drivers.
Tile and stone bits should be installed in a variable-speed drill or drill-driver set to a low speed to prevent cracking or spalling the substrate. Water or a compatible cutting fluid is recommended to reduce heat buildup at the bit tip during drilling. Never apply excessive downward pressure on tile or natural stone, as brittle materials will crack under impact. Tile work should be performed by experienced tile installers or tradespeople familiar with the specific substrate being drilled.
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