Bosch CSG15 Corded 5″ Concrete Surface Grinder 120V 12.5A

The Bosch CSG15 5″ concrete surfacing grinder is built for concrete grading, surface preparation, and flush grinding near walls. With a 12.5 amp motor, 9,300 RPM, and a dedicated dust-collection shroud, it gives contractors a corded concrete grinder for cleaner and more controlled surface work.

The Bosch CSG15 Professional Concrete Surfacing Grinder is designed for concrete contractors, renovation crews, and surface prep professionals who need a compact grinder for demanding concrete applications. Bosch equips this model with a 12.5 amp motor that delivers up to 9,300 RPM for grading, smoothing, and other tough surface-preparation tasks. The dedicated dust-collection shroud is built to help create a cleaner work environment, while the guard-opening system allows grinding flush against walls and edges where larger equipment cannot reach.

This Bosch concrete grinder is built for durability in dusty jobsite conditions. Bosch includes a sealed motor, sealed switch, double-sealed ball bearings, and two lip-sealing rings to help protect the tool from dust contamination and extend operational life. Constant Response circuitry provides soft-start performance, helps maintain speed under load, and offers overload protection. Bosch also includes a spindle lock for quicker wheel changes, a wrap-around auxiliary handle for control, and Service Minderbrushes that indicate when preventive maintenance is required.

Bosch Corded 5″ Concrete Surface Grinder At a Glance

• 12.5 Amp Motor: Delivers corded power for concrete grading and surface preparation.
• 9,300 RPM: Provides the speed needed for demanding surfacing work.
• Dedicated Dust-Collection Shroud: Helps support a cleaner work area during grinding.
• Flush Grinding Capability: Guard-opening system allows grinding close to walls.
• Constant Response Circuitry: Provides soft-start, speed consistency, and overload protection.
• Sealed Internal Components: Helps protect the motor and bearings from dust contamination.
• 5/8″-11 Spindle: Fits many common grinding accessories.
• Service Minderbrushes: Indicates when preventive maintenance is required.

Quick Specs

• Brand: Bosch Power Tools
• Manufacturer Part Number: CSG15
• UPC: 000346467758
• Power Source: Corded
• Voltage: 120V
• Amperage: 12.5A
• Wheel Diameter: 5″
• No Load Speed: 9,300 RPM
• Spindle Thread: 5/8″-11 UNC
• Variable Speed: No
• Overload Protection: Yes
• Tool Weight: 5.95 lb

Markets

• Concrete Contractors: Useful for grading, smoothing, and preparing concrete surfaces before coatings or repairs.
• Flooring and Surface Prep Crews: A practical fit for leveling seams, removing imperfections, and prepping slab surfaces.
• Remodeling Contractors: Helps with concrete correction and cleanup work in renovation settings.
• Masonry and Restoration Teams: Suitable for surface cleanup and patch preparation on concrete structures.
• Facility Maintenance Departments: Useful for repair work and surface prep in commercial and institutional buildings.
• Municipal Workers: Practical for public facility maintenance and concrete repair tasks.
• Trade Schools and Training Programs: Supports instruction in concrete grinding, dust control, and grinder handling.

For crews that need a compact concrete grinder rather than a large walk-behind unit, the Bosch CSG15 offers a practical balance of power, control, and dust collection. Its 12.5 amp motor and 9,300 RPM output make it well suited for concrete grading, surface prep, and edge work, while the dust shroud system helps keep cleanup more manageable. Because the shroud design allows flush grinding near walls, it is especially useful in spaces where larger surface grinders cannot reach effectively.

Concrete contractors and renovation teams will also appreciate the durability features built into this Bosch grinder. The sealed motor and switch, double-sealed bearings, and lip-sealing rings are all designed to help the tool stand up to dusty jobsite conditions. For users looking for a 5″ concrete surfacing grinder, a Bosch concrete grinder, or a dust-shrouded grinder for surface preparation, the CSG15 is a strong fit for daily use.

Bosch CSG15 Corded 5″ Concrete Surface Grinder 120V 12.5A Features

• Powerful motor – 12.5 AMPs and up to 9,300 RPM
• Comprehensive guard/shroud system – with exclusive guard-opening system that allows flush grinding
• Constant Response circuitry — provides soft-start, maintains constant speed under load, provides overload protection
• Sealed switch, double-sealed ball bearings, and two lip-sealing rings – for long tool life
• Service Minderbrushes — indicates when preventative maintenance is required
• 5/8-In. to 11 spindle — wide flexibility for mounting most popular accessories
• Auxiliary handle — for easy handling
• Spindle lock — for quick wheel changes
• Lock-on/off switch — for extended use applications

Compatible Accessories / Works Well With

• Bosch VH1035 Vacuum Hose
• Bosch VH1635 Vacuum Hose
• Bosch VH1635A Anti-Static Vacuum Hose
• Bosch VAC005 Vacuum Hose Setup
• Bosch VAC006 Vacuum Hose Setup
• Bosch VAC008 Anti-Static Hose Setup
• Bosch VAC002 or VAC024 Adapter for 1-1/4″ and 1-1/2″ Hoses
• Bosch VAC020 Adapter for 2-1/2″ Hoses

Bosch CSG15 Corded 5″ Concrete Surface Grinder 120V 12.5A Includes

• (1) Auxiliary Handle
• (1) Flange Kit
• (1) Spanner Wrench
• (1) 5″ Diamond Cup Wheel
• (1) Surface Guard with Vacuum Connection
• (1) Carrying Case

Bosch CSG15 Corded 5″ Concrete Surface Grinder 120V 12.5A Specifications

• Brand: Bosch Power Tools
• Manufacturer Part Number: CSG15
• UPC: 000346467758
• Product Type: Corded Concrete Surfacing Grinder
• Voltage: 120V
• Rating: 120V AC
• Amperage: 12.5
• No Load RPM: 9,300
• Wheel Diameter: 5″
• Spindle Thread: 5/8″-11 UNC
• Adjustable Handle Position: Yes
• Overload Protection: Yes
• Variable Speed: No
• Length: 13.75″
• Height: 6″
• Weight: 5.95 lb

Bosch CSG15 Corded 5″ Concrete Surface Grinder 120V 12.5A Warranty

• Bosch’s 1 Year Limited Warranty for Bosch corded portable power tools

Why Professionals Choose the Bosch Corded 5″ Concrete Surface Grinder

Crews choose the Bosch CSG15 when they need a corded concrete grinder that can handle surface prep and edge grinding without the size of a larger walk-behind machine. The 5″ wheel size, flush-grinding shroud design, and 9,300 RPM motor make it a practical option for contractors working on seams, wall edges, patch prep, and other detailed concrete correction work. For users searching for a Bosch concrete surfacing grinder or a 5″ concrete grinder with dust shroud, this model gives them a more controlled setup for demanding jobs.

Users also choose this Bosch grinder because it is designed for dusty environments where tool protection matters. The sealed motor and switch, double-sealed bearings, and Constant Response circuitry help support longer service life and steadier performance under load. For concrete grading, surface preparation, and wall-edge grinding, the CSG15 remains a dependable choice for professional use.