Double Bar Diamond Tooling Double Bar Diamond Tooling Compatible with National Flooring Grinders

Double Bar Diamond Tooling Compatible with National Flooring Grinders

The Double Bar Diamond Tooling Compatible with National Flooring Grinders is designed for professional concrete grinding, surface preparation, floor leveling, and surface refinement. Featuring two durable bar-shaped diamond segments, this metal bond tooling provides stable grinding performance, consistent contact with the concrete surface, and long service life.

Manufactured with premium industrial diamonds and high-quality metal powders, the double bar design provides a balanced combination of cutting efficiency and durability. Multiple grit and bond options are available to accommodate different grinding stages and concrete hardness levels.

Key Features

• Compatible with National Flooring Grinders – Designed for use with compatible National Flooring grinding systems.
• Double Bar Segment Design – Two bar-shaped diamond segments provide stable and consistent grinding performance.
• High Performance & Long Lifespan – Premium diamond and metal bond formulations provide efficient cutting and excellent durability.
• Multiple Grit Options – Available from aggressive initial grinding through finer surface refinement.
• Multiple Bond Options – Choose the appropriate bond according to the hardness and abrasiveness of the concrete.
• Professional Concrete Applications – Suitable for concrete grinding, floor leveling, surface preparation, and preparation before polishing.

Available Grits: 16–200

Available grit options include:

16/20, 16, 20, 30, 30/40, 50, 60/80, 60, 70, 80/100, 80, 100, 100/120, 120, 150, and 200 grit.

The grit number indicates the approximate coarseness of the diamond abrasive.

Lower grit numbers provide a coarser and more aggressive cut. Grits such as 16, 20, and 30 are suitable for initial grinding and applications where faster material removal is required.

Higher grit numbers produce finer scratches and a smoother surface. Grits such as 80, 100, 150, and 200 are suitable for progressively refining the concrete surface and preparing it for subsequent polishing steps.

Bond Options Based on Concrete Hardness

Selecting the correct metal bond is essential for achieving efficient grinding, consistent diamond exposure, and long tooling life.

The bond is the metal matrix that holds the diamond particles in each segment. During grinding, the bond gradually wears away to expose fresh diamonds. Matching the bond to the hardness of the concrete helps maintain consistent cutting performance.

As a general rule:

Hard Concrete → Softer Bond
Soft Concrete → Harder Bond

For hard concrete, a softer bond wears more readily and helps expose fresh diamond particles. If the bond is too hard, the tooling may glaze over and lose cutting efficiency.

For soft or abrasive concrete, a harder bond helps control segment wear and extend tooling life. Using a bond that is too soft may result in excessive wear and shortened tool life.

ACE Diamond Tooling offers a color-coded bond system based on both concrete compressive strength (PSI) and the Mohs Concrete Hardness Scale, making it easier to select the appropriate bond for your floor conditions.

Tested by Concrete Grinding Professionals

Our diamond tooling is tested and approved through our affiliate, Custom Concrete Prep & Polish, whose team has more than 10 years of professional experience in concrete grinding, polishing, and surface preparation.

Real-world testing helps us continuously evaluate grinding speed, segment wear, diamond exposure, and overall tooling performance before offering our products to contractors.

Explore More

Browse our complete collection of Tooling Collection Comapatible with National Flooring Grinders to find more diamond tools including metal bond tooling, PCD coating removal tools, polishing pads, bush hammers, and other accessories for concrete floor preparation. To learn more about our manufacturing expertise, quality control process, and commitment to customer satisfaction, please visit our About Us page.