4.5" Dry Diamond Cutting Disc 115mm – Universal Segmented Blade for Concrete, Tile, Granite & Masonry

Product Overview

The Universal 4.5" (115mm) Dry Diamond Cutting Disc is a heavy-duty industrial blade engineered for fast, clean, straight cuts through the toughest building materials — with no water required. Designed to fit any standard 4½-inch angle grinder, this segmented diamond disc powers through concrete, reinforced screed, paving blocks, bricks, natural stone, granite, marble and ceramic tile, making it one of the most versatile cutting discs a builder, mason, tiler or DIY user can own.

Whether you are cutting concrete slabs on site, trimming floor tiles for a renovation, or slicing paving blocks for a driveway, this dry-cut diamond disc delivers a longer service life and cleaner edges than standard abrasive discs.

Why Choose This Disc

• Long cutting life — diamond segments outlast ordinary abrasive discs many times over.
• Dry cutting — no water setup needed on site.
• Universal 115mm fit — works with all common angle grinders.
• Clean, chip-reduced edges on tile, stone and granite.
• Rugged build — reinforced steel core made for daily site use.
• Excellent value for professionals and DIY users alike.

Full Technical Specifications

Product Name	Universal Dry Diamond Cutting Disc
Model / Product Code	UDDCD-1152223
Disc Diameter	4½ inch / 115 mm
Arbor (Bore) Size	22.23 mm (7/8")
Bore Options	7/8" – 5/8" (5/8" reducer ring included)
Maximum Working Speed	13,200 RPM
Rim Type	Segmented (dry cutting)
Cutting Method	Dry cut (no water required)
Core Material	Hardened reinforced steel
Cutting Edge	Diamond-impregnated segments
Grade	Industrial / heavy-duty
Compatible Tool	4.5" (115mm) angle grinders
Suitable Materials	Concrete, reinforced concrete, screed, brick, block, paving, masonry, natural stone, granite, marble, ceramic tile
Not Suitable For	Metal, wood, plastic
Brand	Universal
Country of Origin	Made in China

How to Use – Step-by-Step

Before You Start

1. Confirm your angle grinder is rated for a 115mm disc and its no-load speed does not exceed 13,200 RPM.
2. Inspect the disc for cracks, chips or missing segments. Never use a damaged disc.
3. Fit the correct bore: use directly on a 7/8" (22.23mm) spindle, or insert the 5/8" reducer ring for smaller spindles.

Mounting the Disc

4. Unplug or remove the battery from the grinder before changing discs.
5. Place the disc so any arrow points in the same direction the grinder rotates.
6. Tighten the flange/locking nut firmly with the grinder spanner. Ensure the disc sits flat and true.

Cutting Technique

7. Let the grinder reach full speed before the disc touches the material.
8. Hold the grinder firmly with both hands and guide the disc — let the disc do the work; do not force it. Excess pressure overheats the disc and shortens its life.
9. Cut in a straight line. For deep cuts, make several shallow passes rather than one deep plunge.
10. When dry cutting, pause every 30–60 seconds and let the disc spin freely in open air to cool and clear dust.
11. Never twist, bend or grind with the side of the disc — it is a cutting disc, not a grinding disc.

After Use

12. Switch off and let the disc stop completely before setting the tool down.
13. Store the disc flat and dry, away from moisture and impact.

Safety Precautions

Always wear full personal protective equipment: safety goggles or a face shield, a dust mask or respirator (dry cutting produces silica dust), ear protection and cut-resistant gloves. Keep the grinder guard fitted at all times. Keep bystanders clear of the cutting line, sparks and dust. Secure the workpiece with a clamp — never hold small pieces by hand. Do not exceed the marked maximum speed of 13,200 RPM. Disconnect power before changing the disc.

Frequently Asked Questions

Can this 4.5" diamond disc cut concrete?
Yes. The segmented diamond rim cuts concrete, reinforced concrete, screed, blocks and paving as well as stone and tile.

Does it need water?
No. This is a dry-cutting disc — no water is required. For best life, let it cool in open air every 30–60 seconds.

Will it fit my angle grinder?
It fits all standard 4.5" (115mm) angle grinders. It has a 22.23mm (7/8") bore and includes a 5/8" reducer ring for smaller spindles.

Can I cut tiles and granite with it?
Yes — it gives clean, chip-reduced edges on ceramic tile, granite and marble.

Do you deliver outside Nairobi?
Yes. Same-day delivery within Nairobi and next-day delivery to major towns across Kenya.

Store & Delivery Information