Best Bench Grinder Under £100
Finding a reliable bench grinder that doesn't break the bank is key for sharpening chisels, cleaning bolts, and deburring metal. We've rounded up the top five models under £100 based on motor power, wheel quality, and owner satisfaction to help you choose the right one for your workshop.
Quick answer
The Einhell TH-BG 150 is our top pick for best overall under £100, offering a robust 150W motor, adjustable work lights, and a stable cast-iron base. For those on a tighter budget, the Sealey SM521 provides a compact and reliable 150W option with a useful wire wheel attachment.
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- Tested on specs (power, torque, PSI)
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Research updated June 2026.
Einhell TH-BG 150
Best combination of power, features, and build quality at this price point.
| Product | Best For | Motor Power | Rating | Price |
|---|---|---|---|---|
| Einhell TH-BG 150 | Overall & Versatility | 150W | 4.5/5 | Check |
| Sealey SM521 | Budget & Wire Brushing | 150W | 4.3/5 | Check |
| Draper 150W (65066) | Light-Duty Sharpening | 150W | 4.2/5 | Check |
| Clarke CBG6R | Stability & Low Vibration | 150W | 4.1/5 | Check |
| Wagner BG150 | Compact Workspaces | 150W | 4.0/5 | Check |
How We Chose the Best Bench Grinders Under £100
We analysed published specifications and aggregated owner reviews from major UK retailers to identify the best bench grinders in this price bracket. The key criteria included motor power, wheel size, build quality, noise levels, and included features like work lights and eye shields. We prioritised models from established brands such as Einhell, Sealey, Draper, Clarke, and Wagner, ensuring reliability and availability of spare parts.
Best Bench Grinder Under £100: Our Top 5 Picks
Einhell TH-BG 150
Best OverallPros
- Adjustable LED work lights improve visibility
- Cast-iron base reduces vibration
- Includes both coarse and fine grinding wheels
Cons
- Eye shields can feel a bit flimsy
- No wire wheel included as standard
The Einhell TH-BG 150 consistently receives high marks from owners for its balance of features and performance. The 150W induction motor provides enough torque for sharpening garden tools and household knives without bogging down. The adjustable LED lights are a standout feature at this price, making it easier to see your work clearly.
Build quality is solid thanks to the cast-iron base, which keeps the grinder stable during use. Some users note that the plastic eye shields could be more robust, but they function adequately for basic debris protection. Overall, it is the most well-rounded bench grinder available for under £100.
Sealey SM521
Best Budget / Wire BrushingPros
- Comes with a wire wheel on one side
- Compact and lightweight design
- Very affordable price point
Cons
- No work light included
- Base can feel less stable than heavier models
The Sealey SM521 is a popular choice for those who need a basic grinder for light-duty tasks. Its key advantage is the included wire wheel, which is perfect for cleaning rust and paint from metal surfaces without needing a separate accessory. The 150W motor handles these tasks with ease.
Owners appreciate its compact size, which makes it easy to store in a small workshop or garage. However, the lighter weight means it can vibrate more on the bench if not bolted down. It is a straightforward, no-frills machine that delivers good value for money.
Draper 150W (65066)
Best for Light-Duty SharpeningPros
- Quiet operation for a bench grinder
- Adjustable tool rests are easy to set
- Good build quality for the price
Cons
- Wheels may need dressing out of the box
- No wire wheel or buffing mop included
The Draper 150W bench grinder is a reliable workhorse for sharpening tasks. Owners frequently comment on its quiet motor compared to other models in this class. The adjustable tool rests are sturdy and allow for accurate sharpening of chisels, plane blades, and drill bits.
One common note from users is that the supplied grinding wheels can be a bit rough initially and may require dressing for finer work. It lacks extra accessories like a wire wheel, but for pure sharpening duties, it performs well. It is a solid, dependable choice from a trusted UK brand.
Clarke CBG6R
Best for Stability & Low VibrationPros
- Heavy cast-iron base for excellent stability
- Low vibration during operation
- Large eye shields offer good protection
Cons
- Rubber feet can be slippery on some surfaces
- Tool rests are basic and not as adjustable
The Clarke CBG6R is built with a heavy cast-iron base that gives it a reassuring heft. This weight translates to very low vibration during use, making it easier to hold workpieces steady against the wheel. It is one of the most stable grinders in this price range.
User reviews highlight its smooth operation and the large, clear eye shields that provide a good view of the work area. The main drawbacks are the basic tool rests, which lack fine adjustment, and the rubber feet that may need securing with bolts for permanent installation. It is a durable machine built for the long haul.
Wagner BG150
Best for Compact WorkspacesPros
- Very compact and easy to store
- Includes a useful wire wheel
- Simple and intuitive controls
Cons
- Lighter build can lead to more vibration
- Plastic base feels less durable
The Wagner BG150 is designed for those with limited workshop space. Its smaller footprint means it can sit on a crowded workbench or be easily moved out of the way. It comes with a wire wheel on one side, making it a versatile tool for cleaning and light grinding.
Owner feedback indicates it performs well for its size, but the lighter plastic base means it is more prone to walking on the bench during heavy use. Bolting it down is recommended for better stability. It is a capable and space-saving option for basic tasks.
What to Check Before Buying a Bench Grinder Under £100
Before purchasing, consider the motor power and wheel size. Most models in this range offer a 150W motor with 150mm wheels, which is sufficient for DIY tasks. Check the weight and base material: a heavier cast-iron base provides better stability and less vibration than a lighter plastic one.
Also, look at included accessories. Some grinders come with a wire wheel or buffing mop, which adds value. Adjustable tool rests and integrated work lights are useful features that improve accuracy and visibility. Finally, consider the warranty length, as a longer warranty often indicates better build quality.
Mistakes to Avoid
A common mistake is buying a grinder that is too light for the intended tasks. A lightweight grinder will vibrate excessively, making it hard to control the workpiece. Always opt for a model with a cast-iron base if you plan to use it regularly.
Another mistake is ignoring the quality of the included grinding wheels. Many budget grinders come with wheels that need dressing immediately. Factor in the cost of a wheel dresser or replacement wheels when budgeting. Finally, do not forget to check the availability of replacement parts like wheels and eye shields from the manufacturer.
FAQs
Can a 150W bench grinder sharpen chisels?
Yes, a 150W grinder is perfectly adequate for sharpening chisels, plane blades, and other woodworking tools.
What is the best bench grinder for under £100?
The Einhell TH-BG 150 is widely considered the best overall due to its features, power, and build quality.
Do I need to bolt down a bench grinder?
It is recommended to bolt down any bench grinder for safety and to reduce vibration, especially lighter models.
What size grinding wheel is best for DIY?
A 150mm wheel is the standard size for DIY bench grinders and offers a good balance of reach and control.
Are bench grinders with wire wheels useful?
Yes, a wire wheel is excellent for removing rust, paint, and scale from metal surfaces without damaging the base material.
How loud is a typical bench grinder?
Most 150W bench grinders operate at around 75-85 dB, which is similar to a vacuum cleaner. Hearing protection is advised.
Can I use a bench grinder for polishing?
Yes, you can fit a buffing mop to a bench grinder for polishing metal, but you may need to remove the wheel guard for larger mops.
What is the warranty on these grinders?
Warranties vary by brand, but most models under £100 come with a 1 to 2 year warranty.
Is a cast-iron base better than plastic?
Yes, a cast-iron base is heavier and absorbs more vibration, providing a more stable and accurate grinding platform.
Can I change the grinding wheels easily?
Yes, most bench grinders have a simple spindle lock mechanism that allows for easy wheel changes with a standard spanner.
Our verdict
For most DIYers, the Einhell TH-BG 150 is the best bench grinder under £100, offering the best mix of power, features, and stability. If your budget is tighter and you need a wire wheel, the Sealey SM521 is an excellent budget-friendly alternative that still delivers reliable performance.