Front view of the Bosch DB443C 4-inch continuous rim diamond blade featuring a silver rim and blue center with specifications for cutting tile, granite, and marble.
Detailed close-up of the continuous diamond rim and steel core of the Bosch DB443C blade showing the abrasive texture and 4-inch label.
A construction worker wearing a hard hat and respirator uses a Bosch angle grinder with a dust shroud to cut into a concrete wall.
The Bosch DB443C diamond blade resting upright against a stack of various ceramic and stone tiles.
A professional worker kneeling on a concrete floor using a Bosch concrete cutting tool equipped with dust extraction.
A Bosch dust extraction cutting guard connected to a vacuum hose and a HEPA dust extractor sitting on a jobsite floor.
Front view of the Bosch DB443C 4-inch continuous rim diamond blade featuring a silver rim and blue center with specifications for cutting tile, granite, and marble.
Detailed close-up of the continuous diamond rim and steel core of the Bosch DB443C blade showing the abrasive texture and 4-inch label.
A construction worker wearing a hard hat and respirator uses a Bosch angle grinder with a dust shroud to cut into a concrete wall.
The Bosch DB443C diamond blade resting upright against a stack of various ceramic and stone tiles.
A professional worker kneeling on a concrete floor using a Bosch concrete cutting tool equipped with dust extraction.
A Bosch dust extraction cutting guard connected to a vacuum hose and a HEPA dust extractor sitting on a jobsite floor.
BOSCH

Bosch Diamond Saw Blade DB443C 4 Inch Universal Arbor (Continuous Rim 0.06 Kerf 14500 RPM Wet Dry Ceramic Slate Granite Marble Tile Cutter Wheel)

Only 3 left
SKU: DB443C
$19.29 USD

Description

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Industrial-Grade 4 Inch Continuous Rim Diamond Saw Blade with Universal Arbor Adapters

The Bosch DB443C 4-Inch Premium Continuous Rim Diamond Saw Blade functions as a commercial-grade masonry cutting disc engineered to produce smooth, chip-free edge profiles in ceramic tile, granite, slate, and polished marble. Manufactured with an industrial synthetic diamond matrix bonded to a precision-balanced steel plate, this multi-arbor blade includes adapter bushings to mount directly onto 7/8-inch, 5/8-inch, and 20mm output spindles operating up to 14,500 RPM. Featuring a thin 0.06-inch kerf width and a 1-inch maximum cutting depth capacity, the unit executes wet or dry fine-finish cuts while dampening core wobble to preserve delicate stone surfaces.

Best Used For:

  • Ceramic & Porcelain Tile Trimming: Executing straight, chip-free cuts and mitered borders in ceramic wall tiles and dense porcelain flooring.
  • Granite & Marble Slab Backsplash Cutting: Slicing hard granite counter slabs, polished marble tiles, and natural stone overlays without surface breakout.
  • Slate & Masonry Detail Work: Trimming natural slate panels, stone tiles, and decorative hardscape pieces on tile saws or small angle grinders.

Key Performance & Safety Features

  • Smooth Continuous Rim Profile: Uninterrupted diamond edge configuration delivers constant workpiece contact to eliminate chatter and material chipping.
  • High-Density Industrial Diamond Matrix: Formulated with premium synthetic diamond particles for rapid material removal rates and extended service life.
  • Multi-Arbor Adapter Versatility: Includes precision bushings to convert the native 7/8-inch arbor to 5/8-inch or 20mm (0.79-inch) machine spindles.
  • Wet and Dry Application Range: Operates efficiently dry or wet to suppress crystalline silica dust during interior or exterior tile installation.
  • Rigidity-Enhanced Steel Core: Computer-tensioned steel body absorbs operational stress to maintain flat rotational tracking at 14,500 RPM.

What's Included

  • (1) Bosch DB443C 4-Inch Continuous Rim Diamond Blade (7/8" Native Arbor)
  • (1) 7/8-Inch to 5/8-Inch Arbor Adapter Bushing
  • (1) 7/8-Inch to 20mm (0.79-Inch) Arbor Adapter Bushing

Technical Specifications

Brand Name Bosch Tools
Model Number SKU DB443C
Product Series Bosch DB Series
Tool Classification Continuous Rim Diamond Tile Blade
Blade Outer Diameter 4.00 in.
Arbor Hole Specification 0.875 in. (7/8 in.), 0.625 in. (5/8 in.), 0.787 in. (20 mm)
Maximum Cutting Depth 1.00 in.
Cutting Kerf Width 0.060 in. (1.5 mm)
Core Plate Thickness 0.063 in. (1.6 mm)
Maximum Operating Speed 14,500 RPM
Rim Style Profile Continuous Diamond Rim
Cutting Method Application Wet or Dry Cutting Dual Application
Core Plate Metallurgy Precision-Balanced Alloy Steel
Primary Machine Compatibility 4-Inch Small Angle Grinders & Compact Wet/Dry Tile Saws
Target Material Substrates Ceramic Tile, Granite, Polished Marble, Slate, Natural Stone

Pro-Tip: When dry cutting dense granite or polished marble tiles with this continuous rim blade, score the tile glazed surface with a shallow pass first before completing the full 1-inch cut. Scoring prevents surface glaze fracture while allowing the 0.06-inch kerf diamond edge to follow a clean linear tracking guide.