Diamond Tile Cutting Disc — Chip-Free Cuts on Tile, Glass & Stone
Whether you're retiling a bathroom, trimming marble countertops, or fitting glass panels, jagged edges and chipped surfaces cost you time and materials. The HomeDIYer 4.5" Diamond Tile Cutting Disc delivers smooth, precise cuts through hard surfaces that ordinary blades struggle with — giving your finished work a professional edge every time.
Each disc measures Ø115 × 22.23 × 30 × 1.2 mm (4.5" diameter, 1.2" / 30 mm emery width, 1.2 mm kerf thickness) and features a full high-density carborundum coating on a reinforced steel core. The kit includes 3 cutting discs plus 6 reduction rings (3 × 5/8" and 3 × 4/5") for expanded compatibility with different arbor sizes.
Ideal for flooring installation, bathroom remodeling, countertop trimming, and detailed finishing work — anywhere a clean cut on ceramic, porcelain, glass, marble, rock slab, or crystal is required.
✅ Compatible with standard 4-1/2" (115 mm) angle grinders and bench grinders. Includes 6 arbor reduction rings for multiple tool setups.
Key Features
- 🟢 1.2-Inch Extra-Wide Emery Belt — 30 mm high-density carborundum coating for full-surface contact, faster material removal, and more aggressive cutting force than standard thin-kerf blades.
- 🔵 Porous Disc Surface Design — Strategically placed holes across the blade face accelerate chip evacuation, reduce heat buildup, and extend blade life through demanding wet or dry cuts.
- 💎 Industrial-Quality Diamond Grit — Full carborundum coverage delivers long-lasting, consistent cutting results with no deformation under load — rated for up to 12,000 RPM.
- ✂️ Precise, Smooth Cutting Action — Uniform grinding force and a 1.2 mm thin kerf minimize chipping and produce clean, straight edges on porcelain tile, ceramic, glass, marble, rock slab, and crystal.
- 🔇 Low Noise & Less Dust — The porous design and carborundum surface reduce vibration and airborne dust during cuts, making it safer and more comfortable to work with.
- 🎁 Value 3-Pack with 6 Arbor Rings — Includes 3 identical discs plus 3 × 5/8" and 3 × 4/5" reduction rings so you're ready to fit multiple grinder models right out of the box.
What's in the Box
- 3 × Diamond Tile Cutting Disc (Ø115 × 22.23 × 30 × 1.2 mm)
- 3 × 5/8" Arbor Reduction Ring
- 3 × 4/5" Arbor Reduction Ring
Who Is This For
🔧 DIY Home Renovators — Tackling a bathroom retile, kitchen backsplash, or flooring project? These discs handle porcelain and ceramic cleanly so you spend less time cleaning up chipped edges.
💼 Tile & Stone Contractors — Need a reliable cutting disc that won't deform under continuous use? The industrial-grade carborundum coating holds up across full-day installs on marble, granite-look slabs, and glass mosaic sheets.
🪟 Glass & Crystal Fabricators — Cutting decorative glass panels or crystal elements requires controlled, chip-free results. The thin 1.2 mm kerf and uniform grinding force keep edges smooth and waste minimal.
⌚ Workshop Enthusiasts — Keep a set in the shop for cutting rock slabs, stone decorative pieces, or ceramic components. The 3-pack value means you always have a fresh disc ready.
Technical Specifications
| Disc Diameter |
115 mm (4.5") |
| Arbor Bore Diameter |
22.23 mm |
| Emery Width |
30 mm (1.2") |
| Disc Thickness (Kerf) |
1.2 mm (0.047") |
| Coating Material |
High-Density Carborundum (Emery) |
| Core Material |
Reinforced Steel |
| Max RPM |
12,000 RPM |
| Compatible Tools |
4-1/2" Angle Grinder, Bench Grinder |
| Arbor Rings Included |
3 × 5/8", 3 × 4/5" |
| Quantity |
3 Discs per Set |
| Use Type |
Wet & Dry |
| Compatible Materials |
Porcelain Tile, Ceramic Tile, Glass, Marble, Rock Slab, Crystal |
| Product Dimensions |
4.5"L × 4.5"W |
Frequently Asked Questions
Can I use this disc for dry cutting?
Yes. The disc supports both wet and dry cutting applications. For dry use, allow the disc to cool periodically during extended cuts. Using water during cutting is recommended to reduce wear and extend blade life.
What angle grinders is this compatible with?
This disc fits standard 4-1/2" (115 mm) angle grinders and bench grinders. The included 5/8" and 4/5" reduction rings extend compatibility to different arbor sizes on most common grinder models.
Will it chip porcelain or ceramic tile?
The thin 1.2 mm kerf and uniform grinding force are designed to minimize chipping. For best results, apply steady, consistent pressure and let the disc do the work — avoid forcing the blade through the material.
What is the maximum safe RPM?
Do not exceed 12,000 RPM. Always verify your angle grinder's rated speed before use and ensure it does not exceed this limit.
Can it cut granite or very hard stone?
This disc is optimized for porcelain, ceramic tile, glass, marble, rock slab, and crystal. It is not recommended for excessively hard materials such as reinforced concrete or engineering-grade granite — use a dedicated diamond segmented blade for those applications.
How do I attach the reduction rings?
Select the reduction ring that matches your grinder's arbor size (5/8" or 4/5"), place it in the center bore of the disc, then secure the disc onto the grinder spindle with the flange nut. Tighten firmly before use.
Is protective gear required?
Yes. Always wear safety glasses, ear protection, gloves, and a dust mask when operating this disc. The porous design reduces dust and noise, but personal protective equipment is still required for safe operation.
Shop the HomeDIYer range for angle grinder accessories, cutting discs, and tiling tools — everything you need for your next project, all in one place.
