The Diablo 4-1/2 in. Diamond Segmented Turbo Masonry Cut-Off Blade is engineered for professionals who demand fast, clean cuts through concrete, concrete with rebar, brick, and cinder block. Diablo's SPEED-Edge slot design and industrial-grade diamonds combine to deliver cutting performance that outpaces standard diamond discs, making this angle grinder blade a go-to choice for demanding masonry cutting tasks on the job site or in the field.

Key Features

• Diamond segment SPEED-Edge slot design reduces vibration and provides high cutting speeds - delivers up to 30% faster cuts than standard segmented diamond discs, reducing time on each cut and operator fatigue
• 60% taller segments with superior quality diamonds and an ultra-durable bond to the disc body - provides up to 4X longer disc life, meaning fewer blade changes and lower cost per cut
• Hardened disc body absorbs vibration and increases impact resistance - produces superior quality cuts in hardened masonry materials even in extreme applications
• Optimized diamond segments and diamond distribution for constant diamond exposure - maintains maximum cutting performance throughout the life of the blade in high speed applications
• Compatible with 7/8 in., 20mm, and 5/8 in. arbors - fits a wide range of angle grinders without needing a separate adapter purchase
• Includes two bushings (20mm and 5/8 in.) - expands compatibility so the blade works with more tools right out of the box
• Rated for both dry and wet cutting - gives users flexibility to choose the cutting method that best suits the application and conditions
• Maximum rated speed of 13,280 RPM - ensures safe operation within standard angle grinder speed ranges

Why This Product

• Cuts concrete, brick, and block up to 30% faster than standard segmented diamond discs - ideal for contractors who need to move quickly through heavy masonry work without sacrificing cut quality
• Up to 4X longer blade life due to taller segments and ultra-durable bonding - reduces the frequency and cost of blade replacement on high-volume masonry cutting jobs
• Multi-arbor compatibility (7/8 in., 20mm, 5/8 in.) with included bushings means this single blade fits a broad range of angle grinders already on the job site
• Handles rebar-reinforced concrete - suitable for the toughest demolition and construction cutting applications where standard cut-off wheels struggle

Specifications

• Brand: Diablo
• Model Number: DMADST0450
• Diameter: 4-1/2 in.
• Arbor: 7/8 in., 20mm, 5/8 in.
• Kerf: 2.4mm
• Rim Design: Segmented Turbo
• Maximum RPM: 13,280
• Compatible Tools: Angle Grinder
• Materials: Concrete; Concrete with Rebar; Brick/Block
• Pack Quantity: 1

Approved Applications

• Concrete cutting - including standard and rebar-reinforced slabs, footings, and pads
• Brick cutting - for masonry wall work, landscaping, and repair projects
• Block cutting - including cinder block and concrete masonry units (CMU)

What's Included

• 1x Diablo 4-1/2 in. Diamond Segmented Turbo Masonry Cut-Off Blade
• 1x 20mm bushing
• 1x 5/8 in. bushing

Frequently Asked Questions

What materials can this blade cut?

This Diablo diamond segmented turbo blade is designed to cut concrete, concrete with rebar, brick, and cinder block. It is suited for both standard masonry cutting and more demanding applications involving reinforced concrete.

What arbor sizes does this blade support?

The blade is compatible with 7/8 in., 20mm, and 5/8 in. arbors. Two bushings - a 20mm and a 5/8 in. bushing - are included in the package to allow use with grinders that have smaller arbor sizes.

Can this blade 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 use it with or without water cooling depending on your application and job site conditions.

What is the maximum RPM rating for this blade?

The blade is rated to a maximum of 13,280 RPM. Always verify that your angle grinder's rated speed does not exceed this limit before use to ensure safe operation.