Weha Blitz Dry Core Bits

Drill faster, cleaner holes in granite, quartzite, engineered stone, and natural stone with premium vacuum-brazed dry diamond core bits.

Looking for a High-Speed Core Bit That Excels on Hard Stone?

The Weha Blitz Dry Core Bits are engineered for professional fabricators who demand exceptional drilling speed, long tool life, and superior versatility. Designed for granite, quartzite, engineered stone, marble, quartz, concrete, and other natural stone materials, these premium diamond core bits utilize double vacuum-brazed diamonds on both the inside and outside of the barrel for unmatched drilling performance.

Unlike conventional core bits, the Weha Blitz features exposed diamonds throughout the barrel to reduce friction, improve cooling, speed up drilling, and make core removal easier. The exterior diamonds also allow the bit to enlarge holes and create smooth inside radiuses when necessary, making it one of the most versatile fabrication tools available.

Whether you're drilling faucet holes in the shop or making field modifications during installation, the Weha Blitz delivers the speed, durability, and precision professionals rely on every day.

What Fabricators Use Weha Blitz Dry Core Bits For

• Faucet hole drilling
• Sink cutout corners
• Quartzite fabrication
• Granite countertop fabrication
• Engineered stone drilling
• Grommet holes
• Radius hole creation
• On-site countertop modifications

Advantages

• Designed for granite, quartzite, engineered stone, marble, quartz, concrete, and natural stone
• Double vacuum-brazed diamonds on both the inside and outside of the barrel
• Extremely fast drilling performance
• Can enlarge existing holes using the barrel diamonds
• Fully exposed diamonds minimize walking during startup
• Excellent dry drilling performance with optional wet operation
• Long service life with approximately 60–150 holes per bit depending on material and use
• Professional-grade construction for fabrication shops and installers

Specifications

• Application: Granite, quartzite, engineered stone, marble, quartz, concrete, and natural stone
• Recommended Dry Speed: 10,000 RPM
• Wet or dry use
• Total Length: 4"
• Thread: 5/8"-11

Why Choose Weha Blitz Dry Core Bits?

Drilling speed is only part of the equation. The Weha Blitz was engineered to reduce friction, prevent walking, simplify core removal, and maximize production throughout the entire drilling process. Its double vacuum-brazed diamond design allows the bit to cut aggressively while remaining cool and stable, even when drilling extremely hard materials like quartzite.

The exposed barrel diamonds provide an additional advantage by allowing fabricators to enlarge openings, smooth inside radiuses, and fine-tune grommet holes without changing tools. Combined with premium diamond concentration and durable construction, the Blitz offers exceptional productivity for both fabrication shops and field installers.

Whether you're drilling dozens of faucet holes in the shop or completing custom countertop modifications on-site, Weha Blitz Dry Core Bits deliver the speed, precision, and durability professionals expect from premium tooling.

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Frequently Asked Questions

What materials can Weha Blitz Dry Core Bits drill?

They are designed for granite, quartzite, engineered stone, marble, quartz, concrete, and other natural stone materials.

Can these core bits be used dry?

Yes. They are optimized for dry drilling but can also be used wet for shop fabrication applications.

Why are there diamonds on both the inside and outside of the barrel?

The double vacuum-brazed diamond design reduces friction, improves drilling speed, helps release the stone core more easily, and allows the barrel to enlarge or fine-tune existing holes.

What RPM is recommended?

For optimum dry drilling performance, operate at approximately 10,000 RPM.

How long do the core bits typically last?

Depending on the material, thickness, operating conditions, and technique, users can typically expect approximately 60 to 150 holes per bit.