Description
Professional 4" Diamond Grinding Cup for Tile & Stone
The DISTAR DGM-S 4" Diamond Grinding Cup is a professional edge grinding tool for porcelain tile and granite, designed for smooth, controlled material removal and precise finishing.
Built with a thin steel core and high-quality diamond segments, this angle grinder grinding cup delivers clean, chip-free results for both 90° edge shaping and 45° bevel grinding.
Achieve Smooth, Chip-Free Edges on Porcelain & Granite
Grinding dense materials like porcelain and granite can cause:
- Edge chipping
- Uneven finishes
- Excessive material removal
- Poor control
This diamond grinding cup for tile and stone helps:
- Maintain smooth edge quality
- Reduce chipping
- Improve control during grinding
- Deliver consistent results
👉 Ideal for professional finishing work
Designed for Both 90° and 45° Edge Grinding
This tile and stone grinding cup supports:
- 90° edge grinding → straight edge refinement
- 45° bevel grinding → miter edge preparation
👉 Perfect for modern tile installations and stone fabrication
Thin Steel Core for Controlled Grinding Performance
The thin steel core design provides:
- Softer, more controlled grinding
- Improved stability
- Better surface finish
- Reduced vibration
👉 Enhances both precision and finish quality
Choose the Right Grit for Your Application
Available in two grit options:
- 60/70 grit (Coarse) → Fast material removal and shaping
- 100/120 grit (Fine) → Smooth edge finishing
👉 Covers both aggressive grinding and final refinement
Dry Grinding for Jobsite Efficiency
This diamond grinding cup is optimized for:
- Dry operation
- No water required
- Cleaner, more convenient use
👉 Ideal for on-site and indoor work
High-Speed Performance for Efficient Grinding
Compatible with speeds up to 11,000 RPM, this angle grinder grinding cup delivers:
- Fast material removal
- Consistent performance
- Reliable durability
Universal Fit for Angle Grinders
This 4" grinding cup features a 5/8"-11 thread, making it compatible with:
- 5" angle grinders
- Most major grinder brands
👉 Easy installation and reliable performance
Tile & Stone Finishing Workflow
- Step 1: Cut (diamond blade)
- Step 2: Grind (DGM-S grinding cup)
- Step 3: Polish (diamond pads)
Common Applications
This diamond grinding cup for porcelain and granite is ideal for:
- Edge finishing porcelain tile
- Granite edge refinement
- 45° bevel grinding
- 90° edge shaping
- Surface preparation before polishing
Designed for Professionals
Perfect for:
- Tile installers
- Stone fabricators
- Granite countertop specialists
- Remodeling contractors
- Flooring professionals
Product Specifications
- Diameter: 4"
- Thread: 5/8"-11
- Grit Options: 60/70 (coarse), 100/120 (fine)
- Max Speed: 11,000 RPM
- Cooling: Dry use
- Application: Porcelain gres, granite
- Build: Thin steel core design
- Brand: DISTAR
When Should You Use a 4" Diamond Grinding Cup?
Use this tile and stone grinding tool when:
- Refining tile edges after cutting
- Preparing bevel edges
- Smoothing granite edges
- Removing small imperfections
- Preparing surfaces for polishing
Compatible Accessories
The DGM-S 4" grinding cup is designed to work seamlessly with the following tools and accessories:
- Proxxon LWB/A Cordless Long Neck Angle Milling/Drilling Unit — ideal for confined-space grinding on tile and stone
- Proxxon LHW/A Cordless Long Neck Angle Grinder — compact cordless grinder for edge finishing work
- DiStar Polishing Support Adapter — universal backup pad holder for use with Proxxon LWB/A and LHW/A









