What Is a Bush Hammer and What Is It Used For?

by WilsonEthan on July 03, 2025

A bush hammer is a specialized concrete and stone surface preparation tool designed to create a rough-textured finish. The surface it produces is often referred to as a CSP 3–5 profile, commonly required before applying coatings, overlays, or adhesives.


What Is a Bush Hammer?

A bush hammer typically features multiple rows of hardened steel or alloy “teeth” that rotate or strike the surface repeatedly. These tools are attached to hand-held grinders, walk-behind machines, or even CNC bridge saws for automated applications.


How Does a Bush Hammer Work?

The hammer head rotates or vibrates to impact the surface with pointed or pyramidal tips. As the tool moves over concrete or stone, it chips away the top layer to produce a uniform, slip-resistant texture.


What Are Bush Hammers Used For?

1. Concrete Surface Preparation

Bush hammers are commonly used to prepare concrete surfaces before applying:

  • Epoxy coatings
  • Waterproof membranes
  • Self-leveling overlays

This rough texture enhances mechanical bonding, which is critical for coating adhesion.

2. Achieving CSP Ratings

According to the International Concrete Repair Institute (ICRI), surface texture is measured using CSP (Concrete Surface Profile) levels from CSP 1 (smooth) to CSP 9 (very rough). Bush hammers typically create CSP 3–5 finishes.

3. Stone Texturing and Anti-Slip Treatments

On granite, marble, or other stones, bush hammers are used to create decorative textures or slip-resistant surfaces for stairs, outdoor pavements, and pool surrounds.


What Types of Bush Hammers Exist?

Manual vs. Rotary Bush Hammers

Manual hammers are operated by hand, while rotary bush hammers are driven by machines for greater consistency and efficiency.

Bush Hammer Plates for Grinders

These are circular steel plates mounted with carbide teeth, compatible with angle grinders or floor grinders. They are widely used for resurfacing large areas of concrete or stone.


Conclusion

A bush hammer is an essential tool in both industrial flooring and stone finishing work. Whether you're resurfacing concrete to meet coating requirements or creating non-slip stone textures, the right bush hammer can save time and deliver reliable results.

Need help choosing the right bush hammer plate for your job? Browse our collection or contact us for expert advice.


Frequently Asked Questions

Can I use a bush hammer on granite?

Yes. Bush hammers can be used on granite to create anti-slip textures or decorative finishes. Always test on a small area first.

What CSP level does a bush hammer produce?

Typically CSP 3–5, depending on pressure, speed, and the surface type.

Is a bush hammer compatible with my grinder?

Most bush hammer plates are compatible with standard angle grinders and floor grinders. Check the arbor size before purchase.

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