DAYDOOR Dry Diamond Drill Bits, 1/4" 5/16" 3/8" 1/2" Tile Drill Bits Set — Open-Box, 4% Off

10-Piece Diamond Drill Bit Set: This ceramic drill bit set offers 9 different sizes of high-quality ceramic drill bits (2 x 6mm (1/4"), 2 x 8mm (5/16"), 2 x 10mm (3/8"), and 2 x 12mm (1/2") diamond core drill bits) and 2 pilot drill bit, This all-in-one tile drill bit set fit Ceramic tiles, Ceramics, Porcelain, Glass, Marble, Granite, Natural stone, Jade, gemstones, Seashells, Glass mosaic. Covers a wide range of applications: kitchen & bathroom renovation, home & commercial decoration, auto repair, equipment maintenance, outdoor furniture & fence installation No More Wandering or Slipping: Our glass drill bit set includes a pilot bit that new users can first drill an accurate dimple, then drill at a 45° angle with the diamond hole cutter to prevent slipping on smooth surfaces and protect your expensive tiles from scratches.Always maintain proper drilling speed and avoid excessive pressure, so as to prevent ceramic chipping. The tool protects your costly tiles from scratch damage and delivers neat, perfectly sized holes for delicate ceramic tiles, glass bricks, etc High-Carbon Steel & Vacuum Brazing: This diamond core drill bit set uses a premium high-carbon steel body with advanced vacuum brazing technology. Industrial-grade diamond grit is firmly brazed onto the bit body. Compared to standard electroplated diamond drill bits, our vacuum brazed diamond drill bits offer higher hardness, superior wear & corrosion resistance. The upgraded high-carbon steel shank resists bending and breaking, delivering longer service life than conventional electroplated bits Built-In Wax Cooling & Cooling Performance Upgrade: Each porcelain tile drill bit is pre-filled with premium cooling lubricant wax that melts automatically during drilling to cool the cutting surface, reduce friction, and prevent diamond grit shedding. This design eliminates the need for continuous water supply in dry drilling, ensuring high-efficiency cutting and extending diamond drill bit life.Ideal for quick dry-drilling tasks on bathroom walls or kitchen backsplashes where water use is inconvenient. For hard materials like granite and marble, wet drilling with water provides a longer lifespan. The diamond tip drill bit are optimized for both dry and wet drilling Versatile Use: These diamond drill bits adopt a universal round shank, compatible with most electric drills, bench drills and other common power tools. Widely suitable for ceramic tile, porcelain tile, ceramic floor, glass, marble, granite, natural stone, jade, glass bottles, ceramic pots, bathroom tiles, kitchen backsplash, stone countertops, etc. (NOT for concrete, metal, steel, wood, plastic). Laser-engraved size marks help you accurately control drilling hole dimensions. This 10pc ceramic drill bits set packed in sturdy paper box with foam & EPE pearl cotton liner, shockproof storage protects cutting edges, sorts sizes and cuts plastic waste

Wide Range of Applicable Materials:Ideal for tiles, tile floors, granite, ceramics, glass, mirrors, marble, quartz stone, and jade (not suitable for cement, metal, tempered glass, wood or plastic).

Versatile Application Scenarios:

Different specifications can flexibly meet your diverse drilling needs.

1. Home Renovation and DIY ScenariosKitchen Renovation: For example, use 3/8”(10mm) or 1/2”(12mm) Diamond Drill Bits to make large installation holes for faucets on quartz or granite kitchen countertops, and 1/4”(6mm) or 5/16”(8mm)tile drill bits for smaller holes for soap dispensers or water purifier pipelines.Bathroom Renovation: When installing hardware such as towel racks and storage shelves in the bathroom, use 1/4”(6mm) or 5/16”(8mm) glass drill bit to drill holes in tile walls for installing expansion screws to fix the brackets; installing the fixed bracket for the shower head may require 3/8”(10mm) or even 1/2”(12mm) ceramic drill bit.Home DIY Projects: Use these drill bits to drill holes in wood planks when making wooden bookshelves or storage racks for installing connectors and screws; for crafting handmade decorations (e.g., drilling holes in glass or ceramic materials for hanging or assembling components), 1/4”(6mm) or 5/16”(8mm) ceramic tile drill bits are often used.

2. Construction FieldHouse Construction: Use 1/4”(6mm) or 5/16”(8mm) porcelain drill bits to drill wire holes in walls (such as drywall and wooden partition walls); plumbers use 3/8”(10mm) or 1/2”(12mm) porcelain tile drill bits to drill pipe installation holes in concrete or brick walls for laying water pipes and heating pipes.Commercial Building Renovation: When renovating commercial buildings such as shopping malls and office buildings, installing lighting fixtures, air conditioning ducts, and fire-fighting equipment requires drill bits of different specifications. For example, 1/4”(6mm) or 5/16”(8mm) glass and tile drill bit may be used to drill lighting installation holes in ceiling materials; 3/8”(10mm) or 1/2”(12mm) granite drill bits may be used to drill holes in building facades for installing billboard brackets.

3. Industrial and Maintenance ScenariosAutomotive Maintenance and Modification: 1/4”(6mm) or 5/16”(8mm) stone drill bits are often used to drill holes in automotive interior panels and thin body metal sheets for installing audio equipment, wiring for on-board electrical appliances, or custom decorative components.Equipment Manufacturing and Maintenance: Factories use these drill bits to drill holes in metal, plastic, glass, and other material components when manufacturing mechanical equipment and instruments; during equipment maintenance, drill bits of different specifications are also used when replacing parts or reinstalling fixtures. For example, 1/4”(6mm) or 5/16”(8mm) ceramic hole drill bits may be used to drill heat dissipation holes in metal casings; 3/8”(10mm) or 1/2”(12mm) diamond tip drill bits may be used when installing larger fixing bolts.

4. Gardening and Outdoor Facility InstallationOutdoor Furniture Installation: Residents in the United States and Canada use 1/4”(6mm) or 5/16”(8mm) Diamond Drill Bits to drill holes in wood for assembling components and fixing screws when installing outdoor wooden tables, chairs, awnings, and other facilities in their yards.Fence Installation: When installing garden fences or railings, use 3/8”(10mm) or 1/2”(12mm)glass cutting drill bits to drill holes in metal or wooden posts for installing connectors and fixing fence panels.