Power Tools for Professionals



18V 4-1/2 In. Angle Grinder Kit with (1) CORE18V 4.0 Ah Compact Battery

The Bosch GWS18V-45 is a portable cordless grinder designed for professionals who need reliable power. It features a four-brush motor design and optimized gear structure. The grinder is powerful, producing 10,000 no-load rpm, to handle professional cutting and grinding applications. It features a two-position Vibration Control side handle for better handling and less operator fatigue. It is designed for long tool life, with an optimized brush design. It is engineered with a quick-change, burst-resistant wheel guard and restart protection to avoid accidental startup. The kit includes a next-gen CORE18V 4.0 Ah Compact Battery, which delivers light weight and high power, and it is equipped with CoolPack technology for extended life. Using 21700 cell technology, the CORE18V exceeds the power of the original two-layer 4.0 Ah battery with half the number of cells.

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  • (1) GWS18V-45 18V 4-1/2 In. Angle Grinder
  • (1) GBA18V40 18V CORE18V Lithium-Ion 4.0 Ah Compact Battery
  • (1) 18V Charger
  • (1) Vibration Control Handle
  • (1) Wheel Guard
  • (1) Grinding Disc
  • (1) Carrying Bag


  • Powerful four-brush motor – provides 10,000 no-load rpm
  • Optimized gear structure – delivers long runtime for all-day grinding tasks
  • Two-position Vibration Control side handle – offers comfortable control
  • CORE18V 4.0 Ah Li-ion Compact Battery – delivers light weight and high power, and it is equipped with CoolPack technology for extended life
  • Outstanding cutting ability – optimized for metal applications
  • Burst-resistant wheel guard – for additional protection to user
  • Restart protection – prevents accidental startup when switching batteries
  • Lifetime brush design – provides durability for long motor life
  • Large spindle lock – presents convenience and easier change of accessories
  • High-power battery cells – uses enhanced 21700 cell technology, combined with advanced battery design for greater efficiency, to produce longer runtime

Technical Data

Battery Chemistry Lithium Ion
Height 3.6"
Length 12.5"
Rating 18 V
Weight 3.9lb
Wheel Diameter 4-1/2"
Width 4.8"
Includes (1) GWS18V-45 18V 4-1/2 In. Angle Grinder, (1) GBA18V40 18V CORE18V Lithium-Ion 4.0 Ah Compact Battery, (1) 18V Charger, (1) Vibration Control Handle, (1) Wheel Guard, (1) Grinding Disc, (1) Carrying Bag
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Owner's Manual


Accessories and Attachments For GWS18V-45B15

18V Batteries, Chargers and Starter Kits
Angle Grinder Wheels
Continuous Rim Diamond Abrasive Blades
Diamond Cup Wheels
Grinder Attachments
Miscellaneous Angle Grinder Accessories
Segmented Rim Diamond Abrasive Blades
Turbo Rim Diamond Abrasive Blades
V-Groove Diamond Blades
Wire Wheels and Cup Brushes


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