STI Tool Plate – 2420 & 4430 Prep Master
STI Tool Plate – 2420 & 4430 Prep Master is the genuine replacement tool plate designed specifically for the Prep/Master® 2420 and 4430 concrete floor grinders. Built to securely hold all STI tooling and diamond accessories, it provides a reliable platform for professional concrete grinding and polishing applications while ensuring the performance and compatibility expected from an original STI component. As the standard tool plate for these machines, it delivers the precise fit required for consistent operation and efficient tooling changes.
Designed exclusively for the Prep/Master® 2420 and 4430 models, this genuine STI tool plate is the only standard plate configuration available, as these grinders do not use an edge-plate option. Whether you’re replacing a worn plate or maintaining peak machine performance, this OEM component ensures dependable operation, full compatibility with all STI grinding and polishing tools, and the durability needed for demanding commercial and industrial flooring applications.
Main Features
- Genuine STI replacement tool plate
- Designed for Prep/Master® 2420 and 4430 grinders
- Holds all STI tooling and diamond accessories
- Compatible with grinding and polishing applications
- Standard tool plate configuration for 2420 and 4430 models
- Precision OEM fit
- Durable construction for demanding job sites
- Easy replacement and installation
- Ensures reliable machine performance
- No edge-plate option required for compatible models
Specifications
| Property | Value |
|---|---|
| Product Type | Tool Plate |
| Compatible Machines | Prep/Master® 2420 & 4430 |
| OEM Part | Yes |
| Tool Compatibility | All STI Tooling and Diamond Tools |
| Applications | Concrete Grinding & Polishing |
| Plate Type | Standard Tool Plate |
| Edge Plate Option | Not Applicable |





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