The Diablo 5" Diamond Segmented Masonry Cut-Off Blade is an industrial-grade cutting disc engineered for demanding masonry and concrete work with an angle grinder. Built around taller diamond segments and a hardened disc body, this blade delivers up to 2X longer cutting life compared to standard diamond cut-off discs - making it a smart choice for contractors and tradespeople who cut concrete, brick, block, and concrete with rebar on a regular basis. Whether you need precise dry cutting on a jobsite or wet cutting for dust management, this segmented rim blade is designed to maintain constant diamond exposure and high cutting performance through tough, hardened materials.

Key Features

• Taller segments with superior quality diamonds and an ultra-durable bond to the disc body - delivers up to 2X longer cutting life versus standard diamond cut-off discs, reducing the frequency and cost of blade replacements
• Hardened disc body absorbs vibration and increases impact resistance - translates to superior quality cuts in hardened materials even under heavy, repeated use
• Optimized diamond segments and diamond distribution lead to constant diamond exposure - ensures maximum cutting performance in high speed applications up to 12,200 RPM
• Compatible with 7/8", 20mm, and 5/8" arbors - fits a wide range of angle grinders so you can use the blade with the tools you already own
• Includes two bushings (20mm and 5/8") - provides the adapters needed for multi-arbor compatibility right out of the box
• Rated for both dry and wet cutting - gives you flexibility to match the cutting method to your dust control requirements and jobsite conditions
• 2.2mm kerf - removes a narrow material path to reduce waste and keep cuts clean in concrete, brick, and block

Why This Product

• Designed specifically for the toughest masonry materials - concrete, concrete with rebar, brick, and cinder block - so you get a blade matched to the actual demands of structural and masonry cutting work rather than a general-purpose disc
• Up to 2X longer cutting life versus standard diamond cut-off discs means fewer blade changes during a project and lower overall cost per cut on high-volume masonry and concrete jobs
• Multi-arbor compatibility (7/8", 20mm, and 5/8") with included bushings makes this blade ready to mount on most angle grinders without sourcing additional hardware separately
• Wet and dry cutting capability gives you the flexibility to adapt to jobsite conditions - use dry for quick cuts or wet when dust suppression is required in enclosed or sensitive environments

Specifications

• Brand: Diablo
• Model Number: DMADS0500
• Product Group: Diamond Wheels
• Category: Segmented
• Diameter: 5"
• Arbor: 7/8", 20mm, 5/8"
• Kerf: 2.2mm
• Rim Design: Segmented
• Maximum RPM: 12,200
• Compatible Tools: Angle Grinder
• Materials: Concrete; Concrete with Rebar; Brick/Block
• Pack Quantity: 1

Approved Applications

• Concrete
• Brick
• Block

What's Included

• 1x 5" Diamond Segmented Masonry Cut-Off Blade
• 1x 20mm bushing
• 1x 5/8" bushing

Frequently Asked Questions

Can this blade cut concrete with rebar embedded in it?

Yes. The Diablo DMADS0500 is specifically rated for cutting concrete with rebar, in addition to plain concrete, brick, and cinder block. The hardened disc body and industrial-grade diamonds are engineered to handle the impact and abrasion involved in cutting through reinforced concrete.

What arbor sizes does this blade fit, and do I need to buy adapters separately?

This blade is compatible with 7/8", 20mm, and 5/8" arbors. Two bushings - one 20mm and one 5/8" - are included in the package, so in most cases you will not need to purchase separate adapters to fit your angle grinder.

Is this blade limited to dry cutting, or can it also be used with water?

This blade supports both dry and wet cutting. You can use it dry for fast, convenient cuts on open jobsites, or with water for dust suppression in applications where controlling airborne concrete or masonry dust is a priority.

What is the maximum safe operating speed for this blade?

The maximum rated speed for the DMADS0500 is 12,200 RPM. Always confirm that your angle grinder's no-load RPM does not exceed this rating before use, as operating above the maximum rated speed is a safety hazard.