Professional-grade tile cutting and laying tools, a great helper for home decoration/construction projects.

Upgraded Cross-Serrated Carbide Drill Bit Set – 1/4 Hex Shank Dry-Drilling Boring Tools for Ceramic Tile, Glass, Marble & Concrete 1

Upgraded Cross-Serrated Carbide Drill Bit Set – 1/4 Hex Shank Dry-Drilling Boring Tools for Ceramic Tile, Glass, Marble & Concrete 2

Upgraded Cross-Serrated Carbide Drill Bit Set – 1/4 Hex Shank Dry-Drilling Boring Tools for Ceramic Tile, Glass, Marble & Concrete 3

Upgraded Cross-Serrated Carbide Drill Bit Set – 1/4" Hex Shank Dry-Drilling Boring Tools for Ceramic Tile, Glass, Marble & Concrete

Say goodbye to walking drill tips, cracked porcelain, and the messy hassle of constant water cooling during high-precision boring.

Our Upgraded Cross-Serrated Carbide Drill Bits represent the next generation of multi-material masonry tools. Engineered with a revolutionary cross-spearhead design featuring micro-serrated cutting edges, these bits score, center, and bite into smooth glazes instantly without slipping. Designed with an advanced heat-resistant alloy formula, this heavy-duty set supports efficient dry drilling on standard household materials. Equipped with a universal 1/4" hex shank, it locks securely into quick-change impact drivers, cordless drills, and bench presses, delivering smooth, breakout-free holes through tiles, glass, and concrete with ease.

Model:

TS-DR7313

MOQ::

500

Color::

Customizable

Lead Time::

30day-45day

Samples::

We can offer 1-2pcs samples

Customization::

OEM, ODM, Private Label Service

Payment Method::

T/T, L/C

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Product Description

🧰 Technical Specifications

Head Design: Advanced Cross-Spearhead with Micro-Serrated Tooth Architecture
Material Base: Ultra-Dense Industrial Tungsten Carbide Alloy Core
Shank Geometry: Standard 1/4-Inch Quick-Change Hex Shank (6.35mm)
Drilling Mode: Optimized for Dry Drilling (Supports wet drilling for extended life)
Compatible Materials: Full-Body Porcelain Tiles, Vitrified Bricks, Toughened Glass, Travertine, Marble, Cured Concrete, Hardwoods, and Plastics

💎 Why the Upgraded Serrated Design Changes Everything

Micro-Serrated Cross Blade: Standard triangle bits slide on glazed surfaces. Our upgraded head utilizes micro-serrations along the cross-cutting edge that act as built-in anchor points, delivering instant bite, accelerating cutting speeds, and preventing edge-chipping on delicate tiles or mirrors.
Universal 1/4" Hex Shank: No more slipping inside the chuck. The precision-machined quarter-inch hex shank locks tightly into quick-release impact drivers and standard power drill chucks, guaranteeing 100% torque transmission and zero rotational slip.
High-Endurance Dry Drilling Matrix: Formulated with an upgraded high-temperature brazing process and structural alloy composition, these bits dissipate heat faster. This allows tradesmen and DIYers to perform dry drilling tasks on common household masonries without the constant need for water cooling setups.
Optimized Spiral Chip Evacuation: The single, deep-milled spiral groove clears pulverized debris out of the boring tunnel instantly, reducing internal friction, stopping thermal accumulation, and preserving the sharp cutting tip.

Upgraded Cross-Serrated Carbide Drill Bit Set – 1/4 Hex Shank Dry-Drilling Boring Tools for Ceramic Tile, Glass, Marble & Concrete 4

🏠 Construction & Renovation Scenarios

Drilling anchor holes for fixtures in high-gloss kitchen tile backsplashes or glass mirrors.
Boring clean utility passages through thick marble countertops or bathroom vanities.
Fastening brackets directly into cured interior concrete or exterior brick structures.

⚠️ Pro Tips for Maximizing Tool Longevity

Understand "Dry Drilling": While these bits are highly capable of dry drilling on soft-to-medium hardness masonry (like standard tile, brick, and concrete), adding water or cooling fluid when drilling through ultra-hard surfaces like solid granite or engineered quartz will still triple the lifespan of the tool.
Low RPM Scoring: Always start the hole at a low speed (RPM) to allow the serrated head to cut a flawless pilot crater. Once centered, apply moderate downward pressure and increase speed smoothly.
Rotary Mode Only: Keep your power tools set to standard rotation mode. Do not use impact or hammer settings on your drill, as sudden hammer blows will fracture the delicate micro-serrations on the carbide tip.

What is the main benefit of the cross-serrated tip over a flat triangle bit?

The micro-serrations act like tiny saw teeth. Instead of scraping against hard glazes like a traditional flat bit, the serrated cross head grinds into smooth tile or glass surfaces rapidly upon contact. This stops the bit from skating (walking) and significantly cuts down on structural vibration, which is the main cause of tile cracking.

Can I use this hex shank bit directly inside my quick-change impact driver?

Yes, the standard 1/4" hex shank fits perfectly into all quick-release impact driver collars. However, make sure your impact driver is operating in basic rotation mode; do not allow the impact hammer mechanism to engage, as structural hammering will shatter the carbide material.

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Room 213, No. 389 Jinwan Road, Pudong New Area, Shanghai

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