The Diablo 4-1/2 in. Diamond Continuous Rim Masonry Cut-Off Disc is engineered for professionals who demand clean, precise cuts in hard materials like granite, marble, porcelain, and tile. Diablo's industrial-grade diamond edge rim delivers up to 60% smoother cuts compared to standard diamond cut-off discs, making this disc a go-to choice for tile installation, natural stone fabrication, and demanding masonry work. Whether you are wet cutting a polished marble countertop or dry cutting ceramic floor tile, this disc's ultra-thin kerf and continuous rim design minimize chipping and eliminate burn marks for a finish-quality result every time.

Key Features

• Superior quality diamond edge rim design delivers up to 60% smoother cuts versus standard diamond cut-off discs - meaning chip-free results without burn marks, even on polished surfaces like marble and porcelain
• Hardened disc body absorbs vibration and increases impact resistance - reduces operator fatigue and maintains cutting accuracy through demanding, high-volume applications
• Ultra-thin 1.4mm kerf with constant contact continuous turbo rim design - provides precise, narrow cuts at high rates of speed, reducing material waste and cleanup time
• Compatible with 7/8 in., 20mm, and 5/8 in. arbors - fits a wide range of angle grinders without requiring additional adapters beyond the two included bushings
• Rated for both dry and wet cutting - gives you the flexibility to work in the method that best suits your jobsite conditions or material requirements
• Maximum rated speed of 13,280 RPM - supports the high-speed operation of standard 4-1/2 in. angle grinders for fast, efficient material removal

Why This Product

• If you are cutting brittle or highly polished materials like porcelain tile or marble, the continuous rim design significantly reduces chipping at cut edges compared to segmented diamond discs - protecting your material investment on every pass.
• The hardened disc body is built for durability in extreme applications - not just occasional cuts, but sustained professional use where lesser discs would degrade quickly or produce inconsistent results.
• With three arbor compatibility options (7/8 in., 20mm, and 5/8 in.) and two included bushings, this disc works with a broad range of angle grinder models without any additional purchases.
• Supporting both wet and dry cutting methods, this disc adapts to your cutting setup - whether you use a water-cooled tile saw attachment or prefer dry cutting on an angle grinder at the jobsite.

Specifications

• Brand: Diablo
• Model Number: DMADC0450
• Diameter: 4-1/2 in.
• Arbor: 7/8 in., 20mm, 5/8 in.
• Kerf: 1.4mm
• Rim Design: Continuous
• Maximum RPM: 13,280
• Compatible Tools: Angle Grinder
• Compatible Materials: Granite, Marble, Porcelain, Tile
• Pack Quantity: 1

Approved Applications

• Tile and Natural Stone

What's Included

• 1x Diablo 4-1/2 in. Diamond Continuous Rim Masonry Cut-Off Disc
• 1x 20mm bushing
• 1x 5/8 in. bushing

Frequently Asked Questions

Can this disc be used for both wet and dry cutting?

Yes. This Diablo diamond cut-off disc is rated for both dry and wet cutting, giving you the flexibility to work in whichever method your application or jobsite requires.

What materials can this disc cut?

This disc is designed for cutting granite, marble, porcelain, and tile. Its continuous rim design is especially well-suited for hard, brittle, or polished materials where chip-free results are critical.

Which angle grinders is this disc compatible with?

This disc is compatible with angle grinders that accept 7/8 in., 20mm, or 5/8 in. arbors. Two bushings - a 20mm and a 5/8 in. - are included in the package to accommodate different grinder arbor sizes.

How does the continuous rim design compare to a segmented diamond disc?

The continuous rim design maintains constant contact with the material throughout the cut, which produces up to 60% smoother cuts compared to standard diamond cut-off discs. This results in chip-free edges without burn marks - particularly important when cutting polished tile, marble, or porcelain where edge quality matters.