Need a reliable metal bond grinding tool for an STI Prep/Master grinder? This diamond grinding disc is made for that application.

It uses a 2 round segment design and is suitable for concrete floor grinding, surface preparation, coating cleanup after removal, and general scratch cutting work. This style is a practical choice for contractors who want a straightforward metal tool for opening concrete and preparing the floor for the next grinding steps.

The round segment layout helps provide stable contact with the floor while keeping the tool format simple and easy to match with common concrete prep work. It can be used for grinding, leveling, and preparing concrete surfaces before moving into finer grinding or polishing stages.

Bond and grit should be selected based on floor condition and job target. In general, soft bond is used for hard concrete, medium bond for general concrete, and hard bond for soft or abrasive concrete.

Before ordering, please confirm your machine uses the STI Prep/Master compatible tool format and check the segment type, grit, and bond needed for your floor.

FAQ

Q1: What machine is this tool for?

It is made for STI Prep/Master grinders using the matching tool plate format.

Q2: What is this tool mainly used for?

It is mainly used for concrete floor grinding, surface preparation, leveling, and scratch removal.

Q3: Is this a polishing tool?

No. This is a metal bond grinding tool used in the prep and grinding stages before finer polishing steps.

Q4: How do I choose the right bond?

Soft bond is usually for hard concrete, medium bond for general concrete, and hard bond for soft or abrasive concrete.

Q5: How do I choose the right grit?

Lower grits are for more aggressive grinding and opening cuts, while higher grits are for finer scratch patterns and smoother prep.