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Home > Technology > How to drill hard granite efficiently
High-Efficiency Stone Fabrication

Precision Stone Hole Saw:
M14 & 1/2" BSP Compatible

Engineered for professional fabricators requiring speed and precision. This diamond core bit delivers chip-free drilling in granite, marble, and engineered stone, seamlessly adapting to both CNC machines and manual grinders.

Available in various diameters for industrial application.

What is the M14/1/2BSP Stone Hole Saw?

The M14/1/2BSP Stone Hole Saw is a specialized diamond tool attachment designed for the efficient coring of natural and synthetic stone materials. Distinguished by its dual-compatibility interface, it features both M14 threads (common in European angle grinders) and 1/2" BSP gas threads (standard for CNC workstations).

Unlike standard masonry bits, this Stone Hole Saw utilizes high-concentration diamond segments for rapid debris removal and heat dissipation.

Live Demonstration: Granite Drilling

*Note the ease of entry and stability during the drilling process.

Technical Specifications

Connection M14 / 1/2" BSP / 5/8"-11
Segment Height 10mm / 15mm
Application Granite, Marble, Quartz
Drilling Mode Wet (Recommended)

Why Choose This Bit?

  • ✔ Jam-Free Design: Enhanced slots for rapid debris evacuation.
  • ✔ Clean Edges: Reduced vibration minimizes chipping on fragile marble.
  • ✔ Versatile: One bit fits both portable grinders and stationary rigs.

Feedback from Fabricators

★★★★★

"Cutting speed on absolute black granite is roughly 20% faster than our previous supplier."

- Mark H., USA
★★★★★

"Consistent diamond concentration. No 'dud' bits over the last year."

- Carlos R., Spain
★★★★★

"The dual thread compatibility saved us. Fits all our machines."

- Ahmed K., UAE

Frequently Asked Questions

What is the optimal RPM?

2,500 - 4,500 RPM depending on diameter. Lower speeds recommended for larger bits.

Is it CNC compatible?

Yes, it fits standard 1/2" BSP gas thread connections found on most CNC workstations.

Does it require water cooling?

Highly recommended. Wet drilling extends tool life and ensures a cleaner cut finish.

What is the lead time?

15-20 days for standard bulk orders. Air freight options available for urgent needs.

Related Industry Insights

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