Search  for anything...
Bosch

Bosch GWS8-45 4-1/2 In. Angle Grinder

  • Based on 7,409 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$49.00 Why this price?
Save $30.00 was $79.00

Buy Now, Pay Later

As low as $8.17 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Recently Viewed

Style: Adjustable


Features

  • 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

Description

The Bosch GWS8-45 4-1/2 In. Angle Grinder is a light, ergonomic grinder, with a slender grip circumference that allows users to work comfortably for extended periods. This 4.2 Lbs. tool delivers plenty of power, with a 7.5 Amp motor that produces 11,000 no-load RPM. It has directed air flow that diverts dust away from vital components. Bosch's Service Minder brush system shuts off the tool when preventative maintenance is required, which helps to eliminate guesswork. This grinder has a two-position side handle. It has a burst- protection quick adjustable guard designed for user protection, as well as a large spindle lock for easy disc changes.

Brand: Bosch


Material: Plastic


Product Dimensions: 11"L x 5.1"W x 3.7"H


Style: Industrial


Power Source: Corded Electric


Brand: ‎Bosch


Material: ‎Plastic


Product Dimensions: ‎11"L x 5.1"W x 3.7"H


Style: ‎Industrial


Power Source: ‎Corded Electric


Color: ‎Black


Item Weight: ‎5.44 Pounds


Voltage: ‎120 Volts


Wattage: ‎900 watts


Maximum Rotational Speed: ‎11000 RPM


Manufacturer: ‎Bosch


UPC: ‎000346488036


Part Number: ‎GWS8-45


Item Weight: ‎5.44 pounds


Item model number: ‎GWS8-45


Is Discontinued By Manufacturer: ‎No


Size: ‎11" in


Finish: ‎Brushed


Pattern: ‎Solid


Shape: ‎Rectangular


Item Package Quantity: ‎1


Measurement System: ‎Metric


Special Features: ‎lightweight


Included Components: ‎Grinder, Backing Flange, Lock Nut, Spanner Wrench, Type 27 Grinding Guard, Side Handle


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Warranty


Date First Available: July 1, 2016


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Tough, Hardworking Grinder
Style: Industrial
I bought this grinder to use with poly abrasive stripping discs to remove paint on an older ranch house. I appreciate that the grinder is not heavy while still being beefy. The grip is small enough to run one handed, which I needed to do often while stretching arms length at the top of a ladder. The left-side push switch took some getting used to when using left handed. The constant on function works easily...push the switch forward and then press inward. I ran this grinder continuous for up to 15 minutes at a time, through a 5 pack of abrasive discs, over three days, grinding off old paint on wood siding. The grinder got warm, but never overheated. I was impressed. I like the safety guard. It fit the 4 1/2" x 7/8" poly discs perfectly with no contact. The guard requires an Allen key to loosen and reposition it. A clamping guard would be a plus. The auxilliary handle can be used on either left or right. One thing I. like is that the Allen key for the guard, and the wrench for the blade nut are all in one piece, an interesting tool, a little different from the standard wrench. The holes in the blade nut are standard width. It took me about one minute to assemble the tool out of the box. The single speed is rated 11,000 rpms, and I note it runs constant, and has not bogged down in my use. The wheel-lock on the back is red, and is easy to use while changing a blade. Glad I bought it. This is an excellent quality tool for professionals that definitely goes to the job site. ... show more
Reviewed in the United States on July 27, 2025 by Coffeeman
    • Happy Customer
Style: Industrial
I was going to purchase Skill but they do not sell internal replacement parts. That makes them throw away tools! Bosch manufacturers high quality tools I am very pleased with this angle grinder. You can purchase replacement parts for any Bosch tool on their company website. I am very happy with my purchase. ... show more
Reviewed in the United States on January 3, 2026 by Buyer59
    • Don't think about it, Just BUY the Thing, Thank me Later.
Style: Industrial
I Love this Beast... Made my work so much easier, Powerful and Sturdy, totally worth the price, I used it more for cutting rods and cutting through concrete.
Reviewed in the United States on December 23, 2025 by Deric
    • repackaged ?
Style: Industrial
this item was shipped on time and works great. great tool for the money. would have given this 5 stars but its obvious this was a returned product as there was a part missing and the package was obiously retaped. missing an allen wrench holder for the power cord- no big deal but not what i excpected. I kept the tool and love it. ... show more
Reviewed in the United States on June 8, 2025 by david dupree
    • Excellent performance and value
Style: Industrial
Simply an outstanding performance toll ... so happy!
Reviewed in the United States on December 20, 2025 by CARLOS SARAVIA
    • Good machine
Style: Industrial
Really good
Reviewed in the United States on January 15, 2026 by John C.
    • Read the manual! But, yes, it can cut.
Style: Industrial
I bought this to cut some ~1/8" steel. In particular, this rack: https://www.amazon.com/dp/B002RYYY7C?psc=1&ref=ppx_yo2ov_dt_b_product_details The two rows of holes on each post are in line with each other so the rear set needs to be cut off. Not knowing that before I bought that rack, I bought this grinder to do the cutting. I was shocked to find that the manual claims that this grinder cannot be used for cut-off applications, because it doesn't say that anywhere on the Amazon page, or even on Bosch's website, unless you download the manual. However, other manufacturers such as Makita offer similar-sized grinders with the same or lesser specs that claim to support cut-off work, so I figured why not give it a shot. And sure enough, it works just fine. Just don't lay into it too hard and let the disc do the work. Also, wear adequate PPE and a dust mask or respirator, it generates tons of particles and stinks as the disc wears. Other 4.5" Bosch grinders claim to support cut-off applications, but it seems that Bosch has discontinued the "optional" cut-off guard, and finding guards for other brands of 4.5" grinders seemed equally challenging at this price point. It would appear that most people just toss a cut off disc in there and go, using the included "Type 27" guard that comes stock with this and any other brand of entry-level grinder. User beware, and be careful, but there are loads of videos on YouTube showing people using grinders to cut metal with Type 27 guards installed. Installing a Type 1 (flat) disc doesn't leave a lot of clearance with the included guard though, so I opted for a Type 27 cutoff wheel. This has the depressed center like the included grinding wheel, and offers better clearance. The one I got (Norton Blue Fire) says to use it with Type 27 guards, which happens to be what's included with this grinder. Despite this, the manual says not to use the included Type 27 guard for cut-off applications. It appears that there's a lot of conflicting information as to what can and can't be done. Or rather, what should or shouldn't be done. But for everyone wondering if this grinder is suitable for cutting, the answer is yes. Buy it, you'll be happy. It's inexpensive, and if you burn it out, just buy another. It'll still be less expensive than some of the other higher-end models out there. You'll be happy. ... show more
Reviewed in the United States on August 5, 2023 by Ben Huntsman
    • Powerful grinder - works if your left or right handed
Style: Industrial
This is a great grinder. Very powerful, fits all the grinder blades just fine. The handle can be attached on the left or right side, which was a nice touch. Not very loud either. Remember to wear your safety glasses!
Reviewed in the United States on September 14, 2025 by Rumor

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...