Diamax Cyclone Ultra Non-Core Diamond Bit

The Diamax Cyclone Ultra Non-Core Diamond Bit is a professional stone-drilling bit engineered for wet or dry use on hard surfaces such as engineered stone, granite, marble, porcelain tile, and ultra-compact materials. Unlike core bits that leave a hollow core, this non-coring design drills precise holes cleanly with reduced heat and minimal chipping — ideal for smaller diameter holes required in stone fabrication and tile installations.

This Diamax 1/4" to 1" Cyclone Ultra Non-Core Wet/Dry Bit is designed for fast, precise drilling in granite, marble, quartz, and engineered stone surfaces. Engineered with premium ultra diamond technology and a non-core design, it delivers clean, accurate holes with minimal chipping while allowing both wet and dry operation.

Ideal for professional stone fabricators and installers seeking efficiency, control, and reliable drilling performance in smaller-diameter applications.

1/4" to 1" Cyclone Ultra Non-Core Wet/Dry Core Bit 5/8-11" polishing pad designed for fast, smooth stone finishing. Ideal for granite, marble, and engineered stone surfaces. Delivers reliable performance with angle grinders or air polishers.

Key Features & Specifications

Turbo Rim Diamond Design

Aggressive turbo-style rim helps speed up drilling action while maintaining efficient cutting performance.

Diamond Side Protection

Reinforced diamond protection on the outside and inside of the core barrel improves bit durability and helps ease drilling and core extraction.

Dual Wet/Dry Use

Designed for use in both wet and dry drilling—wet use improves bit life but dry capability adds flexibility on jobsites without water access.

Standard Thread

5/8″-11 thread mounts easily to angle grinders, drills, and air polishers that accept this common arbor size.

Robust T-Segment Structure

T-segment core wheel with enhanced side diamonds for solid performance in hard stone applications.

Specifications

• Brand: Diamax (Diamax Inc.)

• Model / SKU: CDBYTU114

• Product Type: Cyclone Turbo Rim Diamond Core Drill Bit

• Diameter: 1 1/4″ / 32 mm

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

• Usable Length: ~3″ (≈76 mm)

• Maximum RPM (Hand Tool): ~4,800 – 6,500 RPM

• Drill Press / CNC RPM: ~2,000 – 3,200 RPM

• Material Compatibility: Engineered stone, granite, and similar hard stone surfaces

• Wet / Dry Use: Yes (can be used dry; wet drilling helps prolong bit life)

• Typical Tools: Angle grinder, hand drill, air polisher with compatible arbor

• Application: Precision hole coring for faucets, drains, plumbing, and electrical cutouts in stone and engineered materials

Pro Tip: For longer bit life and smoother drilling, using water as a cooling and dust-control method is recommended wherever possible—even though this bit supports dry coring.

Item & Specifications Table