The Diablo 4" Diamond Segmented Turbo Masonry Cut-Off Blade is an industrial-grade cutting disc engineered for angle grinders, delivering up to 30% faster cuts through concrete, concrete with rebar, brick, and cinder block compared to standard diamond cut-off discs. Diablo's segmented turbo rim design combines superior quality diamonds with a hardened disc body to maximize cutting performance and longevity in demanding masonry and demolition applications - whether you're slicing through standard block or tackling reinforced concrete.

Key Features

• Diamond segment SPEED-Edge slot design reduces vibration, providing high cutting speeds that deliver up to 30% faster cuts than standard segmented diamond discs - meaning less time on each cut and greater productivity on the job site
• 60% taller segments containing superior quality diamonds along with an ultra-durable bond to the disc body for up to 4x longer life - reducing blade replacement frequency and total cost over time
• Hardened disc body absorbs vibration and increases impact resistance to deliver superior quality cuts in hardened materials - maintaining smooth, clean results even in punishing rebar-heavy concrete
• Optimized diamond segments and diamond distribution lead to constant diamond exposure for maximum performance in high speed cutting applications - ensuring consistent cutting depth and surface quality throughout the blade's life
• Compatible with 7/8", 20mm, and 5/8" arbors and includes two bushings (20mm and 5/8") - allowing easy mounting on a wide range of angle grinders without needing separate adapters
• Rated for dry and wet cutting - giving contractors the flexibility to work in a variety of job site conditions and dust control setups
• Maximum RPM of 15,250 - matches the high-speed output of most angle grinders for safe, efficient operation
• Segmented turbo rim design with 2.4mm kerf - balances fast material removal with reduced drag for smoother, faster cuts through masonry

Why This Product

• When cutting through reinforced concrete or dense block, the SPEED-Edge slot design and taller diamond segments work together to cut up to 30% faster and last up to 4x longer than standard diamond discs - reducing downtime and blade swaps on demanding projects
• The multi-arbor compatibility (7/8", 20mm, and 5/8") with included bushings makes this blade a versatile fit across a wide range of angle grinders, eliminating the need to stock multiple blade sizes for different tools
• Approved for both dry and wet cutting, this masonry blade adapts to job site conditions where water suppression is available as well as standard dry-cut environments - one blade covers more scenarios
• The hardened disc body and optimized diamond distribution deliver consistent cutting quality in hardened materials from the first cut to the last, making this a reliable choice for concrete work, brick cutting, and block demolition

Specifications

• Brand: Diablo
• Model Number: DMADST0400
• Category: Segmented Turbo
• Diameter: 4"
• Arbor: 7/8", 20mm, 5/8"
• Kerf: 2.4mm
• Rim Design: Segmented Turbo
• Maximum RPM: 15,250
• Compatible Tools: Angle Grinder
• Materials: Concrete; Concrete with Rebar; Brick/Block
• Pack Quantity: 1

Approved Applications

• Concrete cutting
• Brick cutting
• Block cutting

What's Included

• 1x Diablo 4" Diamond Segmented Turbo Masonry Cut-Off Blade
• 1x 20mm bushing
• 1x 5/8" bushing

Frequently Asked Questions

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

Yes. This Diablo diamond segmented turbo blade is approved for both dry and wet cutting applications, giving you flexibility depending on your job site setup and dust control requirements.

What angle grinder arbor sizes does this blade fit?

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 you can mount it on a variety of angle grinders without purchasing separate adapters.

How much faster does this blade cut compared to standard diamond discs?

The Diablo DMADST0400 features the SPEED-Edge slot design which delivers up to 30% faster cuts than standard segmented diamond discs. The 60% taller diamond segments also contribute to up to 4x longer blade life compared to standard options.

Is this blade safe to use at the maximum speed of most 4" angle grinders?

This blade is rated for a maximum RPM of 15,250, which is compatible with the high-speed output of most 4" angle grinders. Always verify your tool's rated RPM does not exceed the blade's maximum RPM before use.