Bosch GWS8-45 Corded 4-1/2” Slim Angle Grinder, Lock-On Slide Switch, 120V 7.5A

The Bosch GWS8-45 is a corded 4-1/2 in. angle grinder with a 7.5 amp motor, 11,000 no-load RPM, and a slim grip design for comfortable control during extended grinding work. This 120V grinder includes a wheel guard, auxiliary handle, flange kit, spanner wrench, and abrasive wheel, making it a practical choice for metal fabrication, maintenance, and general shop use.

The Bosch GWS8-45 is designed for users who need a light, compact corded angle grinder for everyday grinding and metalworking tasks. Its 7.5 amp motor delivers 11,000 no-load RPM, while the slim-grip body helps reduce hand fatigue during longer jobs. At 4.2 lb, it is easy to handle in tight spaces, on ladders, or across repeated cuts and surface prep work.

Bosch built this grinder with practical jobsite features that support durability and control. Directed airflow helps move dust away from internal components, the Service Minder brush system shuts the tool off when preventative maintenance is needed, and the two-position side handle gives users added stability. The tool also uses a slide on-off switch with lock-on capability for longer grinding passes and includes a quick-adjust burst-protection guard plus a large spindle lock for faster accessory changes.

Bosch Corded 4-1/2” Slim Angle Grinder At a Glance

• 7.5 Amp Motor: Delivers strong output for grinding and general metalworking tasks.
• 11,000 No-Load RPM: Maintains fast wheel speed for efficient material removal.
• Slim Grip Body: Helps improve comfort and control during extended use.
• Lightweight Design: At 4.2 lb, it is easier to manage in overhead or confined work areas.
• Lock-On Slide Switch: Supports longer grinding passes with less trigger fatigue.
• Directed Air Flow: Helps move dust away from key internal components.
• Service Minder Brushes: Shuts the grinder off when preventative maintenance is required.
• Two-Position Side Handle: Lets users set the handle for better balance and control.
• Quick-Adjust Guard: Allows fast guard positioning for user protection.
• Large Spindle Lock: Makes wheel changes quicker and more straightforward.

Quick Specs

• Brand: Bosch
• Manufacturer Part Number: GWS8-45
• UPC: 000346488036
• Power Source: Corded
• Voltage: 120V
• Amperage: 7.5A
• Wheel Diameter: 4-1/2 in.
• No-Load Speed: 11,000 RPM
• Weight: 4.2 lb
• Operating Mode: Slide on-off switch with lock-on

Markets

• Metal Fabrication: Suitable for grinding welds, deburring edges, and surface cleanup.
• Facility Maintenance: Useful for general repair work and routine metal prep.
• Mechanical Shops: Fits day-to-day grinding and wheel-based cleanup tasks.
• Construction Trades: Good for punch-list work, jobsite steel adjustments, and general cutting/grinding support.
• MRO Departments: A practical corded grinder for maintenance, repair, and operations teams.
• Schools and Training Shops: Straightforward controls and common accessory sizing make it useful for instruction and shop use.
• Advanced DIY Workshops: A good fit for home garages and serious hobby fabrication work.

For buyers who want a compact corded angle grinder without moving up to a larger, heavier tool, the Bosch GWS8-45 covers the essentials well. It combines a 7.5 amp motor, 11,000 RPM performance, and a narrow grip body that is easier to hold through repeated grinding passes. That balance makes it a solid choice for users who need a dependable 4-1/2 in. grinder for shop benches, service trucks, and general maintenance inventory.

It also includes the features that matter in daily use: a lock-on slide switch for longer runs, a two-position side handle for control, and a quick-adjust guard for safer setup changes. Bosch’s directed airflow and Service Minder brush system add practical value for users who expect longer service life and clearer maintenance timing from a corded grinder used regularly in metalworking and repair environments.

Bosch GWS8-45 Corded 4-1/2” Slim Angle Grinder, Lock-On Slide Switch, 120V 7.5A Features

• Powerful Motor: 7.5 amp motor produces 11,000 no-load RPM for fast grinding performance.
• Slim-Grip Design: Narrow body improves comfort and handling.
• Directed Air Flow: Helps divert dust away from vital internal components.
• Service Minder Brush System: Stops the tool when preventative maintenance is required.
• Two-Position Side Handle: Allows better control based on user preference and working position.
• Burst-Protection Guard: Designed for quick adjustment and user protection.
• Large Spindle Lock: Simplifies wheel changes.
• Lock-On Slide Switch: Supports continuous operation during longer grinding tasks.

Compatible Accessories / Works Well With

• 4-1/2 In. Type 27 Grinding Wheels: Primary wheel style for metal grinding applications on this tool.
• Sanding Backing Pad and Sanding Discs: Supported for sanding operations when used with the proper accessory setup.
• Wire Wheels: Supported for cleaning and surface prep when used with the proper guard.
• Threaded Wire Cup Brushes: Can be used with the proper accessory and guard setup.
• Optional Hand Guard: Use optional hand guard for use with backing pads, sanding discs, and wire brushes

Bosch GWS8-45 Corded 4-1/2” Slim Angle Grinder, Lock-On Slide Switch, 120V 7.5A Includes

• (1) Bosch GWS8-45 4-1/2 In. Angle Grinder
• (1) Auxiliary Handle
• (1) Wheel Guard
• (1) Flange Kit
• (1) Spanner Wrench
• (1) 4-1/2 In. Abrasive Wheel
• (1) Owner’s manual

Bosch GWS8-45 Corded 4-1/2” Slim Angle Grinder, Lock-On Slide Switch, 120V 7.5A Specifications

• Brand: Bosch
• Manufacturer Part Number: GWS8-45
• UPC: 000346488036
• Product Type: Corded angle grinder
• Voltage: 120V
• Amperage: 7.5A
• Wheel Diameter: 4-1/2 in.
• No-Load Speed: 11,000 RPM
• Spindle Thread: 5/8 in.-11 UNC
• Adjustable Handle Position: Yes
• Variable Speed: No
• Overload Protection: No
• Length: 11 in.
• Width: 5.1 in.
• Height: 3.7 in.
• Weight: 4.2 lb
• Switch Type: Slide on-off switch with lock-on

Bosch GWS8-45 Corded 4-1/2” Slim Angle Grinder, Lock-On Slide Switch, 120V 7.5A Warranty

• Bosch’s 1-year Limited Warranty For Corded Portable Power Tools

Why Customers Choose the Bosch Corded 4-1/2” Slim Angle Grinder, Lock-On Slide Switch

Customers choose the Bosch GWS8-45 because it delivers the core performance expected from a 4-1/2 in. corded angle grinder without adding unnecessary bulk. The slim grip, moderate weight, and 11,000 RPM speed make it practical for weld cleanup, surface prep, rust removal, and general metal grinding in both shop and field settings. Buyers looking for a small angle grinder often want a tool that is easy to hold for repeated tasks, and this model is built around that need.

It also stands out for maintenance-minded features that matter over time. Directed airflow helps with durability, and the Service Minder brush system gives users a clearer service interval instead of leaving brush maintenance to guesswork. For crews, maintenance teams, and individual buyers who want a dependable Bosch grinder with corded power and a lock-on slide switch, the GWS8-45 remains a solid fit.