Bosch GWS8-45 4-1/2 In. Angle Grinder
Best for
Best budget Bosch
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$62.10
Updated May 18, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the Bosch GWS8-45 is the value pick among name-brand corded 4.5-inch grinders. boschtools.com and amazon.com listings cite a 7.5A motor at 11,000 RPM in a slim-grip housing, and high-trust r/Tools commenters call out the comfortable circumference and Bosch's reputation for motor durability. Verified-purchase reviewers on homedepot.com praise its light weight and ease of handling for grinding tasks.
What reviewers liked
- Slim-grip ergonomics widely praised in r/Tools and verified-purchase reviews
- 7.5A Bosch motor with reputation for durability per community consensus
- Light weight makes it easy to control for extended sessions
- 4.6 amazon.com rating across ~2,000 verified reviews
Where it falls short
- r/Tools thread notes the included manual states it is not rated for cutting discs
- Less powerful than 11A-class competitors like the DWE402 for heavy work
- r/Welding commenter says its high RPM produces unusually aggressive sparks
- No kickback brake or modern safety electronics
Across the reviewers we read, the Bosch GWS8-45 is the value pick among name-brand corded 4.5-inch grinders. boschtools.com and amazon.com listings cite a 7.5A motor at 11,000 RPM in a slim-grip housing, and high-trust r/Tools commenters call out the comfortable circumference and Bosch's reputation for motor durability. Verified-purchase reviewers on homedepot.com praise its light weight and ease of handling for grinding tasks.
The trust-weighted picture surfaces one notable wrinkle: an r/Tools thread highlights that the manual explicitly states the GWS8-45 is not rated for cutting discs, which contradicts how many buyers actually use it. r/Welding commenters note its RPM produces aggressive sparks and that 11A-class grinders will outwork it on heavy stock removal.
For light-to-medium DIY grinding, sharpening, and finishing work, the consensus is that it's an excellent price-to-quality buy; for daily heavy cutting, reviewers steer buyers toward the DWE402 or a cordless brushless option.
- Powerful Motor
- Professional 7.5 amp motor delivers 11,000 no-load rpm
- Slim-Grip Design
- Provides outstanding user comfort
- Durable Carbon Brushes
- Delivers extended tool life
- Two-Position Side Handle
- Allows for greater control and utility
- Directed Air Flow
- Diverts dust from vital components for durability
- Burst-Protection Guard
- Provides quick adjustments for user security
- Service Minder Brushes
- Eliminates guesswork, stopping grinder when preventative maintenance is required
- Large Spindle Lock
- Provides easy disc changes
The BOSCH GWS8-45 has a robust 7.5-amp motor, churning out an impressive 11,000 no-load RPM. Whether I was cutting through metal or grinding ...
I've got the Bosch. It's a very powerful grinder and works great. In some cases it's probably got a few too many RPM. The sparks it produces are ...
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“Bosch Angle Grinder Review (GWS8” · 45)
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