Diamax Cyclone Dry T-Type Core Bit with In/Out Protection

The Diamax Cyclone Dry T-Type Core Bit w/ In/Out Protection is a professional-grade diamond core drill bit engineered for wet or dry drilling in engineered stone and granite. Its T-segment construction with diamond side protection on both inside and outside delivers enhanced durability, smoother drilling, and easier core release — even in field conditions where water isn’t available.

This Diamax 1" to 2" Cyclone Dry T-Type Core Drill Bit with In/Out Protection is designed for efficient and precise dry drilling in granite, marble, quartz, and engineered stone. Featuring a T-type diamond rim and reinforced in/out protection, it ensures clean, accurate holes while minimizing chipping and extending bit life. With a 5/8"-11 threaded connection, it provides secure mounting and reliable performance for professional stone fabricators and installers.

Cyclone Dry T-Type Core Drill Bit – 1" to 2", In/Out Protection, 5/8"-11 Thread is a high-performance diamond core bit engineered for fast, clean dry drilling in hard stone surfaces. Compatible with standard threaded drill machines for professional results.

Key Features & Specifications

Diamond In/Out Side Protection

Upgraded from regular T-segment bits with vacuum-brazed diamond protection on both the inside and outside of the core barrel for improved wear resistance and longer life.

Versatile Wet or Dry Use

Designed for performance in both wet and dry drilling, giving flexibility on job sites with or without water access (using water when possible helps extend bit life).

5/8″-11 Thread

Universal threaded connection fits most angle grinders, drills, and air polishers used in stone fabrication.

Smooth Core Release

Inside diamond protection helps prevent core sticking for faster, cleaner extraction.

Ideal for Hard Materials

Suited for drilling through engineered stone and granite, commonly required for holes in countertops and installer plumbing/electrical work.

Specifications

• Brand: Diamax Inc.

• Model / SKU: CDBYTSD100

• Product Type: Cyclone Dry T-Type Diamond Core Bit with In/Out Side Protection

• Size / Cutting Diameter: 1″ (the CDBYTSD series covers up to 2″)

• Fitting / Thread: 5/8″-11 female thread

• Usable Length: 3″ usable cutting length

• Materials Compatible With: Engineered stone, granite

• Wet / Dry Use: Yes — capable of both, with wet preferred for longer bit life

• RPM Ratings (approx):

  • Hand Tool: 3,200 – 6,500 RPM (soft to hard stone)

  • Drill Press: 2,000 – 3,200 RPM

• Compatible Tools: Angle grinder, drill, air polisher with 5/8″-11 arbor

Usage Tip: While this core bit supports dry drilling, using water as a coolant can significantly increase the diamond segment life and improve hole quality.

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