Diablo Tile Drill Bit DMANS1030 1/4 Inch Stone Glass (Multi Ground Carbide Tip 3 Flat Shank Rotary Driver Ceramic Granite Precision Boring Tool)

Diablo DMANS1030 1/4-Inch x 2-1/4-Inch Carbide-Tipped Tile, Stone, and Glass Drill Bit

The Diablo DMANS1030 1/4-Inch x 2-1/4-Inch Carbide-Tipped Drill Bit bores clean, chip-free anchor and mounting holes through fragile ceramic wall tile, natural stone backsplashes, granite slabs, and non-tempered glass panels. Engineered with a specialized high-temperature brazed multi-ground carbide spearhead, this rotary drill bit delivers immediate self-centering starts that eliminate bit wandering across slick, polished, or vitreous surfaces. Featuring a precision-machined 3-flat shank to prevent slippage inside 3-jaw drill chucks and optimized strictly for rotary-only drilling modes, this durable hole starter equips tile contractors, plumbers, and glaziers with rapid, crack-free anchor boring.

Best Used For:

• Tile & Bath Fixture Anchor Boring: Drilling standard 1/4-inch anchor clearance holes through glazed ceramic and porcelain wall tiles for mounting towel bars, grab handles, and shower doors without cracking.
• Natural Stone & Granite Backsplash Installations: Sinking precision mounting holes in solid marble, granite, slate, and travertine without surface chipping.
• Architectural Glass & Mirror Mounting: Penetrating flat non-tempered glass panels and decorative mirrors smoothly using low-RPM rotary drill drivers.

Key Performance & Safety Features

• Multi-Ground Carbide Spearhead Tip: Precision-sharpened cutting geometry bites into hard, smooth surfaces on contact to provide fast, self-centering starts without walking.
• High-Temperature Brazed Head: Thermal-resistant tip bonding withstands extreme friction heat to extend tool life during dense stone penetrations.
• 3-Flat Non-Slip Shank: Machined flats lock firmly into 3-jaw drill chucks to eliminate spinning and power loss under high drilling resistance.
• Rotary Driver Optimization: Engineered specifically for standard rotary cordless and corded drill drivers, protecting brittle materials from destructive percussion impact.
• Compact 2-1/4-Inch Profile: Short overall length minimizes bit deflection and vibration for superior dimensional hole accuracy.

What's Included

• (1) Diablo 1/4" x 2-1/4" Tile, Stone, and Glass Carbide-Tipped Drill Bit (DMANS1030)

Technical Specifications

Pro-Tip: Apply light, continuous pressure and run your drill at low speeds (under 600 RPM) while applying a steady drip of water; continuous lubrication cools the brazed carbide tip and prevents localized thermal cracking in fragile glass and ceramic tile.