Bosch DB441S 4 Inch Segmented Rim Diamond Blade

Product Description

The ROBERT BOSCH TOOL GROUP DB441S is a 4-inch segmented rim diamond blade engineered for universal rough cuts across a range of masonry and hardscape materials. The segmented rim design promotes fast cutting and efficient debris clearance during dry cutting operations. A medium diamond bond formulation extends blade life in general-purpose cutting applications, while improved diamond size and quality contribute to consistent cut speed. Even distribution of diamond content throughout the segments delivers reliable, repeatable performance across the full life of the blade. This blade is a standard-duty tool for trade professionals and experienced DIYers who need dependable material removal on the job site.

The DB441S is suited for cutting pavers, soft brick, concrete, and concrete block. It is designed for general-purpose masonry work in residential and light commercial settings where a single blade must handle a variety of substrate types. Typical applications include hardscape installation, masonry repair, and flatwork preparation. The 4-inch diameter fits compact angle grinders and small circular saws configured for dry masonry cutting. Each package contains 5 blades, making it practical for extended job site use or stocking a service vehicle.

Key Features

• Segmented rim geometry promotes fast cutting and clears debris during dry cuts
• Medium diamond bond formulation extends blade service life in general-purpose masonry applications
• Improved diamond size and quality delivers fast, consistent cutting action
• Even diamond content distribution throughout segments ensures reliable performance from start to finish
• Cuts pavers, soft brick, concrete, and concrete block
• Sold in a 5-pack for efficient job site supply

Compatibility

Designed as an OEM-style replacement and general-use diamond blade for 4-inch angle grinders and compact dry-cut masonry saws accepting standard 4-inch diamond blades.

Installation Notes

Diamond blades of this type are installed and serviced by masons, tile setters, and general contractors using angle grinders or compact masonry saws. Before mounting, confirm the tool spindle speed rating meets or exceeds the blade maximum RPM rating and that the arbor size matches. Always power down and disconnect the tool from its power source before changing blades. Wear appropriate PPE including eye and respiratory protection during dry cutting operations, as dry cutting generates silica-containing dust subject to OSHA silica exposure standards.