Power Tools for Professionals


18 V 4-1/2 In. Angle Grinder Kit with CORE18 V 6.3 Ah Battery

The Bosch GWS18 V-45B14 18 V 4-1/2 In. angle grinder kit pairs the ideal cordless grinder for pros who need unleashed performance and the CORE18 V battery – the best-built battery on the planet. With its four-brush motor design and optimized gear structure, the GWS18 V-45 grinder produces 10,000 no-load RPM. It features a two-position vibration control side handle for better handling. It is designed for long life, with overload protection and lifetime brush design. The CORE18 V 6.3 Ah battery provides more power than the previous-generation batteries, delivering performance comparable to competitor batteries that are up to 35% larger. It features CoolPack 2.0 technology for longer battery life, and it is backward and forward compatible with all Bosch 18 V tools and chargers. The included Bosch BC1880 18 V fast charger can charge a spent CORE18 V to 80% in 41 minutes.

Read more Show less


  • (1) GWS18V-45 18V 4-1/2 In. Angle Grinder
  • (1) GBA18V63 CORE18V Lithium-ion 6.3 Ah Battery
  • (1) BC1880 18V Fast Charger
  • (1) Vibration Control Handle
  • (1) Wheel Guard
  • (1) Grinding Disc
  • (1) Carrying Bag


  • GWS18 V-45 – features a powerful four-pole, open-frame motor for 10,000 no-load RPM
  • GWS18 V-45 – designed with an optimized gear structure for all-day grinding tasks
  • CORE18 V – made with high-power cells delivering up to 80% more power than previous-gen 6.0 Ah batteries
  • CORE18 V – has an enhanced cell design for up to 20% longer runtime than previous-gen 6.0 Ah batteries
  • BC1880 – charges the CORE18 V to 80% in 41 minutes and to 100% in 55 minutes
  • GWS18 V-45 – includes a two-position Vibration Control side handle for comfortable control
  • GWS18 V-45 – optimized for metal applications with a four-pole motor
  • GWS18 V-45 – includes a burst-resistant wheel guard for additional protection to user
  • GWS18 V-45 – furnishes restart protection to prevent accidental startup when switching batteries
  • GWS18 V-45 – features lifetime brush design for long motor life
  • GWS18 V-45 – has Electronic Cell and Motor Protection for long runtime and 2X lifetime
  • GWS18 V-45 – provides a large spindle lock for easier change-out of accessories
  • CORE18 V – employs the Bosch-exclusive CoolPack 2.0 technology, which provides up to 35% more cooling effect than the previous-generation CoolPack system
  • CORE18 V – has an efficient design with a 1.8 Lbs. weight and performance comparable to competitive batteries up to 35% larger
  • CORE18 V – provides backward and forward compatibility with all Bosch 18 V tools
  • CORE18 V – offers cold weather operation in conditions down to -4° F

Technical Data

Battery Chemistry Lithium Ion
Battery Voltage (V) 18
Height 3.6"
Length 12.5"
Rating 18 V
Weight 3.9lb
Width 4.5"
Includes (1) GWS18V-45 18V 4-1/2 In. Angle Grinder, (1) GBA18V63 CORE18V Lithium-ion 6.3 Ah Battery, (1) BC1880 18V Fast Charger, (1) Vibration Control Handle, (1) Wheel Guard, (1) Grinding Disc, (1) Carrying Bag
Read more Show less

Owner's Manual


Accessories For GWS18V-45B14

Premium Continuous Rim Diamond Abrasive Blades
Premium Segmented Rim Diamond Abrasive Blades
Premium Turbo Rim Diamond Abrasive Blades
Segmented Rim V-Groove Diamond Blades
Standard Continuous Rim Diamond Abrasive Blades
Standard Segmented Rim Diamond Abrasive Blades
Standard Turbo Rim Diamond Abrasive Blades
Tuckpointing Blades
Turbo Rim V-Groove Diamond Blades


Customer Support

Have a tool, accessory, application or service question?
Call us at 1-877-BOSCH99 (1-877-267-2499) or visit the Frequently Asked Questions.

Search for Parts Diagram

Locate and download the parts diagram for your tool.

Product Registration

Protecting your investment in Bosch power tools can save you time and money in the future.

Order Spare Parts

Order your genuine Bosch parts here.

Contact Us

Call our Service Hotline or use our contact form.

1-877-BOSCH99 (1-877-267-2499)

Mon-Fri: 7:00-19:00 CST


Visit the Frequently Asked Questions section.
We may already have the answer for your questions.

Show FAQ
TEXT Customer Service

Have a service related question? Text us here.

Mon-Fri: 7:00-19:00 CST