Product studio shot facing the front layout of the Bosch DC4518 4-1/2 Inch Double Row Segmented Rim Diamond Cup Wheel on a white background, highlighting its circular white steel base plate, a 7/8-inch center unthreaded arbor hole, surrounding airflow cooling vents, and 18 aggressively spaced double-row abrasive diamond grinding segments.
The Bosch DC4518 4.5-inch diamond grinding cup wheel inside its dark blue commercial cardboard retail packaging blister pack, detailing key features such as 50 percent longer service life, smooth finish styling, vibration reduction architecture, and primary material compatibility graphic callouts for concrete, brick, and thinset mortar.
An application marketing graphic titled Double Row Segmented Diamond Cup Wheels, showing a worker using a blue corded Bosch angle grinder equipped with a surface dust shroud attachment and vacuum hose line to grind down a rough outdoor concrete steps curb line.
An infographic diagram showing cross-sections of building materials labeled Best For, depicting individual structural samples of aggregate stone concrete, red clay brick paving, and a ridges pattern layout of thinset mortar adhesive to emphasize surface preparation capabilities.
A close-up promotional shot focusing on the abrasive diamond segment teeth layout of the Bosch DC4518 wheel disc, featuring a bold red heading stating 50 percent longer life compared to the previous model DC510 version with an official Diamond Segments badge.
A high-angle demonstration shot showing a contractor operating an angle grinder with a circular dust shroud assembly to clean a concrete ceiling overhead, paired with a blue lower banner labeled Easier Control and an inset graphic of the 4.5-inch diamond wheel.
A close-up application shot of a technician wearing white safety gloves handling a handheld concrete surface grinder to flatten out an uneven floor covered in dried thinset tile adhesive grooves, with an official white wireline Vibration Reduction badge displayed on the bottom corner.
A trade user graphic title banner stating Optimal For Use By Various Trades, displaying four black-and-white occupational clip-art icons that depict a general laborer with a shovel, a demolition worker with a pickaxe, a bricklayer masonry professional, and a flooring tile installation technician.
An indoor jobsite application shot showing a construction worker on his knees handling a shrouded concrete floor grinder across a wide tile surface prep area, with large white text block overlaying stating For Surface Preparation: Removing Coatings, Smoothing Uneven Surfaces, and More.
An outdoor action photo of an operator using a cordless Bosch 18V angle grinder powered by a CORE18V battery to smooth down a rough structural foundation slab, with a prominent marketing title block stating Engineered For Longer Life vs. Standard Double Row Cup Wheels.
A construction worker on his knees wearing a dust mask, safety glasses, and protective gloves handles a handheld Bosch angle grinder fitted with a dust extraction shroud and a diamond cup wheel to flatten a rough indoor concrete floor while a blue dust extractor vacuum runs in the background.
An overhead action shot of a tradesperson wearing a white hard hat, face mask, and safety earmuffs using a shrouded Bosch concrete surface grinder to level an unfinished concrete ceiling slab with a vacuum hose attached for dust collection.
A flooring installer working on a renovation project uses an unthreaded 7/8-inch arbor diamond grinding cup wheel on a Bosch angle grinder to clear away hard thinset mortar ridges and prepare the structural concrete subfloor for new tile installation.
A commercial contractor standing safely on a scaffolding structure utilizes a 4-1/2 inch diamond cup wheel system connected to a heavy-duty Bosch vacuum cleaner unit to plane down high spots on a rough overhead concrete slab structure.
A close-up view of a construction professional working flush against an interior wall corner, utilizing a high-speed Bosch diamond grinding disc wheel with a protective brush-ring dust shroud to level down rough aggregate concrete surfaces safely.
Product studio shot facing the front layout of the Bosch DC4518 4-1/2 Inch Double Row Segmented Rim Diamond Cup Wheel on a white background, highlighting its circular white steel base plate, a 7/8-inch center unthreaded arbor hole, surrounding airflow cooling vents, and 18 aggressively spaced double-row abrasive diamond grinding segments.
The Bosch DC4518 4.5-inch diamond grinding cup wheel inside its dark blue commercial cardboard retail packaging blister pack, detailing key features such as 50 percent longer service life, smooth finish styling, vibration reduction architecture, and primary material compatibility graphic callouts for concrete, brick, and thinset mortar.
An application marketing graphic titled Double Row Segmented Diamond Cup Wheels, showing a worker using a blue corded Bosch angle grinder equipped with a surface dust shroud attachment and vacuum hose line to grind down a rough outdoor concrete steps curb line.
An infographic diagram showing cross-sections of building materials labeled Best For, depicting individual structural samples of aggregate stone concrete, red clay brick paving, and a ridges pattern layout of thinset mortar adhesive to emphasize surface preparation capabilities.
A close-up promotional shot focusing on the abrasive diamond segment teeth layout of the Bosch DC4518 wheel disc, featuring a bold red heading stating 50 percent longer life compared to the previous model DC510 version with an official Diamond Segments badge.
A high-angle demonstration shot showing a contractor operating an angle grinder with a circular dust shroud assembly to clean a concrete ceiling overhead, paired with a blue lower banner labeled Easier Control and an inset graphic of the 4.5-inch diamond wheel.
A close-up application shot of a technician wearing white safety gloves handling a handheld concrete surface grinder to flatten out an uneven floor covered in dried thinset tile adhesive grooves, with an official white wireline Vibration Reduction badge displayed on the bottom corner.
A trade user graphic title banner stating Optimal For Use By Various Trades, displaying four black-and-white occupational clip-art icons that depict a general laborer with a shovel, a demolition worker with a pickaxe, a bricklayer masonry professional, and a flooring tile installation technician.
An indoor jobsite application shot showing a construction worker on his knees handling a shrouded concrete floor grinder across a wide tile surface prep area, with large white text block overlaying stating For Surface Preparation: Removing Coatings, Smoothing Uneven Surfaces, and More.
An outdoor action photo of an operator using a cordless Bosch 18V angle grinder powered by a CORE18V battery to smooth down a rough structural foundation slab, with a prominent marketing title block stating Engineered For Longer Life vs. Standard Double Row Cup Wheels.
A construction worker on his knees wearing a dust mask, safety glasses, and protective gloves handles a handheld Bosch angle grinder fitted with a dust extraction shroud and a diamond cup wheel to flatten a rough indoor concrete floor while a blue dust extractor vacuum runs in the background.
An overhead action shot of a tradesperson wearing a white hard hat, face mask, and safety earmuffs using a shrouded Bosch concrete surface grinder to level an unfinished concrete ceiling slab with a vacuum hose attached for dust collection.
A flooring installer working on a renovation project uses an unthreaded 7/8-inch arbor diamond grinding cup wheel on a Bosch angle grinder to clear away hard thinset mortar ridges and prepare the structural concrete subfloor for new tile installation.
A commercial contractor standing safely on a scaffolding structure utilizes a 4-1/2 inch diamond cup wheel system connected to a heavy-duty Bosch vacuum cleaner unit to plane down high spots on a rough overhead concrete slab structure.
A close-up view of a construction professional working flush against an interior wall corner, utilizing a high-speed Bosch diamond grinding disc wheel with a protective brush-ring dust shroud to level down rough aggregate concrete surfaces safely.
BOSCH

Bosch Diamond Cup Wheel DC4518 4 1 2 Inch Double Row Segmented Rim Concrete Grinding Disc (13200 RPM 18 Segments 7 8 In Arbor Masonry Surface Prep)

In stock
SKU: DC4518
$41.99 USD

Description

Bosch Promtional Logo Logout

Bosch DC4518 4-1/2 Inch Double Row Segmented Diamond Cup Wheel

The Bosch DC4518 is a 4-1/2-inch double row segmented diamond cup wheel engineered for rapid concrete surfacing, joint leveling, and thinset mortar removal. Featuring 18 industrial diamond segments and a maximum speed rating of 13,200 RPM, this grinding disc delivers aggressive material removal while leaving a flat finish on cured concrete, masonry, and brick. Each wheel undergoes precision factory balancing to minimize machine vibration and hand fatigue, while the 5-hole perimeter extraction pattern optimizes airflow and dust collection when paired with an angle grinder surfacing shroud.

Best Used For:

  • Concrete Expansion Joint Leveling: Grinding down raised concrete seams, uneven slab edges, and high spots prior to floor covering installation.
  • Adhesive & Mortar Removal: Scraping away stubborn residual thinset, mortar beds, epoxy coatings, and masonry flashing from subfloors.
  • Masonry & Brick Refacing: Smoothing rough concrete surfaces, brick facings, and structural masonry walls during restoration projects.

Key Performance & Safety Features

  • 18 Double-Row Diamond Segments: Aggressive segment arrangement maximizes surface contact for fast material removal and smooth finishing.
  • 13,200 RPM Rated Speed: Built to withstand high-speed concrete grinding on commercial 4-1/2-inch right-angle grinders.
  • Precision Balanced Core: Factory balancing reduces rotational wobble and tool chatter, extending grinder bearing life and reducing operator fatigue.
  • 5-Hole Dust Extraction Ports: Integrated vent openings facilitate continuous airflow cooling and efficient vacuum dust capture when using a dust shroud.
  • Universal 7/8-Inch Arbor: Fits standard 4-1/2-inch angle grinders with a unthreaded 7/8-inch mounting spindle.
  • Extended Service Life Matrix: Advanced diamond-grit formulation provides up to 50% longer operational life compared to previous-generation wheels.

What's Included

  • (1) Bosch DC4518 4-1/2" Double Row Segmented Rim Diamond Cup Wheel

Technical Specifications

Brand Manufacturer Bosch®
Model Part Number OEM SKU DC4518
Wheel Diameter 4.50 inches (11.4 cm)
Arbor Size Diameter 0.875 inches (7/8") Unthreaded
Overall Blade Thickness 0.75 inches (1.9 cm)
Maximum Rotational Speed 13,200 RPM
Segment Configuration 18 Double Row Segments
Abrasive Cutting Matrix Synthetic Industrial Diamond Grit Matrix
Dust Collection Feature 5-Hole Airflow Extraction Core Geometry
Primary Target Materials Cured Concrete, Masonry, Thinset, Mortar, Brick
Tool Compatibility Type Handheld 4-1/2" Right-Angle Grinders and Concrete Surfacers
Operating Environment Wet or Dry Grinding Applications
Assembled Net Weight 0.50 lbs (8.0 oz)

Pro-Tip: Mount a dedicated vacuum concrete dust shroud to your angle grinder when running this diamond cup wheel dry; proper airflow through the 5 extraction holes keeps segment matrix temperatures cool and prevents thermal glazing over concrete aggregate.