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Crowne 4.5" CGS 70/80 Grit — Diamond Cutting, Grinding & Shaping Disc

The sweet spot.

The blue Crowne 4.5" CGS 70/80 delivers the balance between aggressive material removal and controlled finishing. Cut, grind, bevel and shape porcelain, tile and stone with one versatile diamond disc.

CUT • GRIND • SHAPE • 70/80 GRIT

  • Description
  • Use-Cases
  • Applications
  • Tech Specs

Meet in the Middle.

Too aggressive?

Too fine?

Sometimes you need a little bit of both.

The Crowne 4.5" CGS 70/80 Grit Diamond Disc sits right in the sweet spot of the CGS lineup—giving you strong material removal without sacrificing the control you want for more detailed shaping and edge work.

Cut. Grind. Bevel. Shape. Refine.

One disc built to handle a whole lot of work.

 

 

WHY 70/80 GRIT?

Balance.

The 70/80 diamond grit bridges the gap between our aggressive 40/50 CGS and finer 100/120 CGS.

It has enough bite to remove material efficiently while giving you more control as you approach the shape and profile you actually want.

That makes the blue 70/80 an excellent all-around CGS for everyday tile and stone work.

ENOUGH BITE TO REMOVE. ENOUGH CONTROL TO REFINE.

 

 

CUT. GRIND. SHAPE.

CGS means exactly what it says.

CUT

Make minor cuts, corrections and adjustments when you don't need to switch over to a dedicated cutting blade.

GRIND

Remove unwanted material, knock down high spots and clean up rough areas.

SHAPE

Create bevels, rounds, curves, notches and profiles with controlled material removal.

One wheel.

Multiple jobs.

 

 

THE EVERYDAY CGS

The 70/80 CGS is a great choice for:

  • Beveling

  • Miter preparation

  • Edge shaping

  • Rounding corners

  • Notching

  • Minor cut corrections

  • Hole and opening adjustments

  • Flattening high spots

  • Removing material

  • Refining rough edges

  • Preparing edges for additional finishing

When you're not sure you need the aggression of the 40/50 or the finer finish of the 100/120, grab the blue one.

BUILT FOR HARD MATERIALS

Designed for professional work on:

  • Porcelain

  • Ceramic tile

  • Granite

  • Marble

  • Quartz and compatible engineered stone

  • Natural stone

From everyday corrections to more involved shaping, the 70/80 gives you a versatile balance of speed and control.

 

 

CHOOSE YOUR CGS

40/50 — REMOVE

Most aggressive.

Choose 40/50 when faster material removal and rough shaping are the priority.

70/80 — SHAPE

The sweet spot.

Choose 70/80 for balanced material removal, shaping and everyday versatility.

100/120 — REFINE

Most controlled.

Choose 100/120 when you want finer material removal and a smoother finished surface.

40/50 → REMOVE

70/80 → SHAPE

100/120 → REFINE

Three grits.

Three levels of aggression.

Choose the one that matches the job.

 

 

ONE DISC. A LOT OF OPTIONS.

The advantage of CGS is versatility.

Instead of constantly switching between accessories for every small cut, grind or adjustment, CGS gives you multiple functions in one diamond disc.

Shape the edge.

Correct the opening.

Refine the bevel.

Keep moving.

TECH SPECS

  • Product: Crowne CGS

  • Diameter: 4.5" / 115mm

  • Diamond Grit: 70/80

  • Grit Profile: Medium / all-purpose

  • Type: Multi-purpose diamond cutting, grinding and shaping disc

  • Tool: Compatible 4.5" angle grinder

  • Primary Functions: Cutting, grinding, shaping, beveling, rounding and edge refinement

  • Materials: Porcelain, ceramic, granite, marble, quartz, engineered stone and compatible natural stone

  • Primary Purpose: Balanced material removal and controlled shaping

  • Professional Use: Yes

Always follow the maximum RPM marked on the product and your grinder manufacturer's instructions.

 

 

NOT TOO ROUGH. NOT TOO FINE.

Sometimes the middle is exactly where you want to be.

Enough aggression to get the work done.

Enough control to dial it in.

Crowne CGS 70/80

THE SWEET SPOT.

Crowne Tools — For Pros. By Pros.

Rapid Beveling: Quickly creating initial bevels on granite, marble, or quartz countertops before finer finishing.

Rough Shaping for Inlays: Removing bulk material quickly when creating spaces for tile or stone inlays.

Flattening Uneven Slabs: Taking down high spots on stone or concrete surfaces efficiently.

Creating Grooves & Channels: Cutting defined grooves for plumbing, wiring, or decorative purposes.

Initial Edge Rounding: Aggressively rounding sharp edges on tile or stone before detailed shaping.

Removing Old Mortar/Adhesive: Grinding away stubborn material from reclaimed stone or tile.

Prepping Edges for Lamination: Creating clean, rough surfaces for strong epoxy bonds in countertop build-ups.

Core Functions: More Aggressive Beveling, Shaping, Minor Cutting, Grooving, Flattening, Initial Rounding, Material Removal, Surface Preparation.

Materials Handled: Granite, Marble, Engineered Stone, Porcelain Tile, Ceramic Tile, Concrete, Natural Stone.

Grit Profile: #40/50 Diamond Grit – designed for rapid and aggressive material removal and shaping.

Tool Compatibility: Optimized for 4.5-inch Angle Grinders.

Industries: Professional Tile Setting, Countertop Fabrication & Installation, Stonemasonry, Concrete Work, Renovation

  • Blade Diameter: 4.5 inches (115mm)
  • Diamond Grit: #40/50 (Coarse grit for more aggressive material removal and shaping)
  • Design: Multi-purpose Cutting, Grinding, Shaping
  • Max RPM: 14,500
  • Core Construction: Heavy-duty steel core for stability, reduced vibration, and enhanced durability during aggressive use.
  • Intended Use: Rapid shaping, beveling, cutting, grooving, flattening, and rounding on a wide range of hard materials.

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