Bosch Diamond Blade DB4542S 4 1/2 Inch Turbo Rim (13300 Max RPM 7/8 Inch 5/8 Inch Arbor Wet Dry Masonry Concrete Stone Cutting Angle Grinder)

Bosch DB4542S 4-1/2 Inch Turbo Rim Diamond Masonry Saw Blade

The Bosch DB4542S 4-1/2 Inch Turbo Rim Diamond Blade is a high-speed masonry cutting accessory engineered for smooth, low-chip crosscutting in concrete slabs, clay brick, stone pavers, and masonry block. Utilizing industrial-grade diamond grit bonded to a tensioned steel core with integrated heat-dissipating cooling holes, this dual-arbor (7/8-inch and 5/8-inch) blade operates at speeds up to 13,300 RPM across wet and dry cutting environments. Featuring a serrated 0.047-inch turbo rim design, this blade accelerates stock removal while maintaining smooth edge control on handheld angle grinders.

Best Used For:

• Concrete Slab & Block Cutting: Slicing poured concrete footings, cinder blocks, and precast wall panels with minimal edge chipping.
• Brick & Mortar Joint Scoring: Cutting clay landscape bricks, mortar joints, and refractory brick during chimney or patio restoration.
• Natural Stone & Paver Sizing: Trimming granite pavers, limestone slabs, flagstone, and slate tiles for outdoor masonry projects.

Key Performance & Safety Features

• Industrial-Grade Diamond Matrix: Formulated metal bond mixed with larger diamond particles accelerates feed speed and extends blade life.
• Serrated Turbo Rim Design: Combines continuous rim edge smoothness with segmented kerf debris clearance for rapid material removal.
• Steel Core with Cooling Vent Holes: Integrated core perforations promote airflow to dissipate thermal heat buildup during dry cutting.
• Dual 7/8-Inch and 5/8-Inch Arbor Fitment: Includes brass adapter bushing to fit standard 4-1/2-inch small angle grinder spindles.
• 0.047-Inch Thin Kerf Profile: Reduces cutting friction and strain on grinder motors while minimizing airborne masonry dust.
• Wet and Dry Application Versatility: Suitable for quick dry scoring cuts or continuous wet cutting for dust control and blade longevity.

What's Included

• (1) Bosch DB4542S 4-1/2 In. Turbo Rim Diamond Blade
• (1) 7/8 In. to 5/8 In. Arbor Adapter Bushing

Technical Specifications

Pro-Tip: Avoid applying excessive downward pressure when dry-cutting hard concrete pavers; let the 13,300 RPM speed of the turbo rim pull the blade through the cut to prevent thermal glazed glazing on the diamond matrix.