The Diablo 9" Diamond Segmented Masonry Cut-Off Blade is a professional-grade cutting disc engineered for demanding work in concrete, concrete with rebar, brick, and block. Designed by Diablo for use with angle grinders and masonry cut-off saws, this segmented diamond wheel delivers up to 2X longer cutting life compared to standard diamond cut-off discs - making it a reliable choice for contractors and tradespeople who need consistent performance in high-wear, high-speed cutting applications. Whether you are slicing through reinforced concrete slabs or trimming cinder block, this 9" disc is built to handle extreme conditions with precision and durability.

Key Features

• Taller segments with superior quality diamonds and an ultra-durable bond to the disc body - delivers up to 2X longer service life versus standard diamond cut-off discs, reducing the frequency of blade changes on the job
• Hardened disc body absorbs vibration and increases impact resistance - means smoother, safer cuts in hardened materials and less operator fatigue during extended use
• Optimized diamond segments and diamond distribution for constant diamond exposure - ensures maximum performance and consistent cutting speed in high-speed applications without stalling or glazing
• Compatible with DM 7/8" and 5/8" arbors - fits a wide range of angle grinders and masonry saws without needing extra adapters beyond the included bushing
• Includes one 5/8" bushing - provides out-of-the-box compatibility with both common arbor sizes so you can get to work immediately
• Rated for both dry and wet cutting - gives you flexibility on the job site whether water cooling is available or not
• Maximum RPM of 6,650 - matched for safe, high-speed operation on compatible angle grinders and masonry cut-off saws
• Industrial-grade diamonds with a hardened disc body - maximizes cutting quality even in the most aggressive masonry and demolition applications

Why This Product

• Cuts through the toughest masonry materials - concrete, rebar-reinforced concrete, brick, and block - making it a single blade solution for mixed demolition and construction work rather than needing multiple specialty discs
• The 2X longer cutting life claim is backed by the taller segmented design and superior diamond bond, meaning fewer blade replacements and lower cost per cut on large or ongoing masonry projects
• Supports both dry and wet cutting at up to 6,650 RPM, giving job site flexibility whether you are cutting indoors without water access or outdoors with wet suppression to control dust
• The included 5/8" bushing and dual arbor compatibility (DM 7/8" and 5/8") make this blade ready to mount on the most common angle grinders and masonry cut-off saws without hunting for additional adapters

Specifications

• Brand: Diablo
• Manufacturer Part Number: DMADS0900
• Product Group: Diamond Wheels
• Category: Segmented
• Diameter: 9"
• Arbor: DM 7/8", 5/8"
• Kerf: 2.4mm
• Rim Design: Segmented
• Maximum RPM: 6,650
• Compatible Tools: Angle Grinder; Masonry Cut Off Saw
• Compatible Materials: Concrete; Concrete with Rebar; Brick/Block
• Pack Quantity: 1

Approved Applications

• Concrete
• Brick
• Block

What's Included

• 1x 9" Diamond Segmented Masonry Cut-Off Blade (DMADS0900)
• 1x 5/8" bushing

Frequently Asked Questions

Can this blade cut through concrete that contains rebar?

Yes. This blade is specifically rated for cutting concrete with rebar. The industrial-grade diamonds, hardened disc body, and ultra-durable segment bond are designed to withstand the added impact and abrasion that rebar presents during cutting.

Does this blade support both dry and wet cutting?

Yes. The Diablo DMADS0900 is suitable for both dry and wet cutting applications, giving you flexibility on job sites where water cooling is either available or unavailable.

What arbor sizes does this blade fit?

This blade is compatible with DM 7/8" and 5/8" arbors. A 5/8" bushing is included in the package, so you can mount it on tools with either arbor size without purchasing a separate adapter.

What is the maximum RPM for this blade, and which tools is it designed for?

The maximum rated speed is 6,650 RPM. This blade is designed for use with angle grinders and masonry cut-off saws. Always verify that your tool's rated RPM does not exceed the blade's maximum RPM of 6,650 before use.