A 100 mm head with a safety lever
You want a 4 inch disc, a safety lever throttle and 1/4 inch connectors in the box. The ORAZIO is about £27.99, with 4.7 from 11 reviews. No guard and no air figure are stated. Eleven ratings are a thin sample.
Air angle grinder comparison 2026
The best air angle grinders, compared.
Top pick: ORAZIO 100 mm air angle grinder – 4.7 from 11 reviews, a safety lever and UK plus EU 1/4 inch connectors, at about £27.99. Eleven ratings are a thin sample. Best value: NuoDunco 3 inch mini air cut-off tool – About £29.99 for a 3 inch cut-off with a safety switch and a guard. It does not replace a 125 mm grinder. Updated October 2026.
An air angle grinder is a hand-held pneumatic tool with a right-angle head. It drives an abrasive disc, a cutting disc or a small cut-off wheel from a compressor, not from a battery or a mains lead. In the UK you buy one when a workshop airline is already fitted. A tiny oil-free compressor is a poor match. Look for a stated disc diameter, a guard, a safety throttle and an inlet that suits a UK airline. Workshop airlines are commonly 1/4 inch BSP. A published air consumption at about 6.2–6.3 bar shows whether the compressor can hold pressure at the tool. Judge the supply by free-air delivery, not by tank litres. A 125 mm disc is the regular grinding size. A 100 mm head is smaller. A 3 inch wheel is a cut-off, not that general-purpose grinder. ISO 11148-7 covers this sort of non-electric disc grinder. A right-angle die grinder with a collet is a different tool. Those checks are set out in the [air angle grinder buying guide](/hub/tools/air-angle-grinder/sub/air-angle-grinder-buying-guide).
An air angle grinder is a hand-held pneumatic tool with a right-angle head. It drives an abrasive disc, a cutting disc or a small cut-off wheel from a compressor, not from a battery or a mains lead.
11 products checked · 47 hrs invested · +21,400 readers
3 of 3: Best air angle grinders compared
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1-2 of 3Best overall
Best value
9.4/10
8.2/10
7.8/10
∼ £28
∼ £30
∼ £63
4.7(11)
4.1(25)
3.9(20)
Personal buying guide
Which air angle grinder fits?
Question 1 of 2
What are you fitting to the spindle?
The best air angle grinders in detail
Our view
The ORAZIO 100 mm air angle grinder is listed at about £27.99 with 4.7 out of 5 from 11 reviews, a high average on a small sample. The listing shows a 4 inch disc, 11,000 rpm, a safety lever throttle, a side handle and UK plus European 1/4 inch quick connectors, and the item weight is 1.53 kg. The included line lists one grinding disc, two hex wrenches and a packing box, not a carry case. The listing does not state a guard or an air-consumption figure, so neither can be checked against your compressor from this page. One review says suitable discs are hard to find, which matters if the bore does not match the wheels you already own. Eleven ratings, including a UK text written before use, are too thin to treat 4.7 as a settled verdict. The connectors are not named as BSP or NPT. On the star score in this set it is the top pick. That is not a laboratory result, and it is not a claim that the tool is the safest.
Pros
- Safety lever throttle
- UK and EU connectors
- Side handle
- Grinding disc in the box
Cons
- Guard not stated
- Air consumption not stated
- One review: suitable discs hard to find
- Only 11 ratings
Best for: You want a 100 mm head with a stated safety lever and 1/4 inch connectors in the box, and you can source discs marked at or above 11,000 rpm.
Less suitable: You need a stated guard, a published air figure, or a larger review base before you pay.
Specifications
- Model
- ORAZIO 100 mm air angle grinder
- Brand
- ORAZIO
- Price
- ∼£28
- Customer rating
- 4.7/5(11)
- Disc size
- 100 mm
- Free speed
- 11,000 rpm
- Safety control
- Safety lever
- Side handle
- Yes
- Air fitting
- 1/4 inch UK/EU
- Abrasives
- 1 grinding disc
- Weight
- 1.53 kg
- Stated use
- Cleaning, deburring
Common questions
What disc does the ORAZIO 100 mm grinder use?
The title and the included-components line say a 100 mm, or 4 inch, air angle grinder with one grinding disc. Free speed is listed as 11,000 rpm.
Does it include a UK air connector?
Yes. The listing includes UK and European 1/4 inch quick connectors. It does not name the thread as BSP or NPT.
Does it come with a carry case?
The included-components line lists a packing box, not a carry case. Air consumption is not stated.
Our view
The NuoDunco tool is a 3 inch (76 mm) mini air cut-off listed at about £29.99 with 4.1 out of 5 from 25 reviews, not a 125 mm angle grinder. The listing shows 20,000 rpm, a safety switch, an adjustable wheel guard and a 1/4 inch NPT fitting, and the item weight is 905 g. The package bullet includes cut-off wheels, one 3 inch HSS saw blade and wrenches, though that wheel count conflicts with a line that says five wheels. One UK review says it is neither light nor quiet, which sits awkwardly against the 905 g figure if you expected a featherweight cutter. Air consumption, noise and vibration are not stated, so those fields stay blank. The 1,200 W line is a listing field on an air-powered tool, not a mains wattage you can compare with an electric grinder. A 1/4 inch NPT fitting should not be forced onto a UK BSP airline. On shelf price it is the best value among the two tools that do not hold the top score. That is a price note in this set, not a claim that it replaces a 125 mm grinder.
Pros
- Safety switch
- Adjustable guard
- Cut-off wheels in the package
- 905 g listed weight
Cons
- Not a 125 mm grinder
- 1/4 inch NPT, not stated as BSP
- Wheel count conflicts in the listing
- One UK review: not light and not quiet
Best for: You are cutting sheet metal with 3 inch wheels and you can connect a 1/4 inch NPT fitting.
Less suitable: You needed a 125 mm grinding head, or your airline is BSP only and you will not fit a proper adapter.
Specifications
- Model
- NuoDunco 3 inch mini air cut-off tool
- Brand
- NuoDunco
- Price
- ∼£30
- Customer rating
- 4.1/5(25)
- Disc size
- 76 mm
- Free speed
- 20,000 rpm
- Safety control
- Safety switch
- Guard
- Adjustable guard
- Air fitting
- 1/4 inch NPT
- Abrasives
- Cut-off wheels
- Weight
- 0.905 kg
- Stated use
- Cutting sheet metal
Common questions
Is this a 125 mm angle grinder?
No. The title is a 3 inch mini air angle grinder for cutting metal, and the bullets describe a cut-off tool. It is not stated for 125 mm discs.
What speed is listed?
Maximum rotational speed is listed as 20,000 rpm. The listing does not print a speed mark for the included wheels.
Which air fitting is in the box?
The package bullet includes one 1/4 inch NPT air fitting. It does not say BSP. A side handle is not listed.
Our view
The ABAC G-202 is a 125 mm air angle grinder listed at about £62.99 on amazon.co.uk, with 3.9 out of 5 from 20 reviews. The maker’s description states 10,000 rpm, a working band of 4–6.3 bar and 2.5 l/s (150 l/min, about 5.3 cfm), plus 89.5 dB(A) and 4 m/s² for this model only. The included line lists two wrenches, a hex key and a protective cover the listing says can be remounted, and the item weight is 1.44 kg. One UK review calls it a decent air grinder and good value, which still sits under a 3.9 average. The listing does not claim a lock-off, and one review says nothing stops an accidental start. Another review says the air use is too high for a home compressor, with further comments on a failure after a few uses and a very loud tool. The listing does not name the inlet thread, so a UK 1/4 inch BSP airline is not confirmed here. It is the dearest listing in this set and the lowest star score, so it is neither the top pick nor the best value here.
Pros
- 125 mm discs
- Side handle
- Repositionable cover
- UK review calls it decent value
Cons
- No lock-off claimed
- One review: too much air for a home compressor
- One review: failed after a few uses
- One review: very loud
Best for: You already have a workshop compressor that can supply about 150 l/min at up to 6.3 bar and you want a 125 mm head with a published air figure.
Less suitable: A small household compressor, or a job that needs a stated lock-off and a named inlet thread.
Specifications
- Model
- ABAC G-202 125 mm air angle grinder
- Brand
- ABAC
- Price
- ∼£63
- Customer rating
- 3.9/5(20)
- Disc size
- 125 mm
- Free speed
- 10,000 rpm
- Guard
- Repositionable cover
- Side handle
- Yes
- Weight
- 1.44 kg
- Stated use
- Grinding, deburring
Common questions
What disc size does the ABAC G-202 take?
The listing says it is for 125 mm sanding and cutting discs. The maker’s description states 10,000 rpm. The technical details on the listing do not print a free speed.
Is the ABAC G-202 cordless?
No. The power source line says air powered, so it needs a compressor. The maker states 2.5 l/s (150 l/min) at up to 6.3 bar for this model.
Does the listing claim a lock-off throttle?
The bullets describe a side handle and a cover that can be mounted in different positions. They do not claim a lock-off. One review says there is no device to stop an accidental start.
How we compared
Three amazon.co.uk listings were read from the stored pages. The score is the star rating scaled to 100. It is not a laboratory test, and no extra deduction was applied. The highest score is the top pick. Among the other two, the stronger shelf price is the best value. The weights below sum to 100. They describe what was checked. They were not used to override the star score.
1
Disc size
25%A stated disc diameter comes first. A 125 mm head, a 100 mm head and a 3 inch cut-off are different tools. The marked speed on the disc must not sit below the spindle.
2
Air supply
25%A published consumption at about 6.3 bar can be checked against the compressor. Where the listing is silent, that figure is left open. Tank litres are not free-air delivery.
3
Inlet
20%UK airlines are commonly 1/4 inch BSP. A stated UK connector, a stated 1/4 inch NPT fitting, and a listing that names no thread are scored apart. NPT and BSP are not forced together.
4
Throttle and guard
15%A safety lever or safety switch, and a guard the listing actually describes, score. A cover with no lock-off claim is not treated as a safety throttle.
5
Reviews and price
15%Stars and review counts are the amazon.co.uk line. A high average on 11 ratings stays a thin sample. Shelf price separates the best value only after the top score is set.
Independent review
Last updated: October 2026
8 sources checked
Air angle grinder buying guide
Match the disc and the airline before you match a star line. A 3 inch cut-off is not a 125 mm grinder. A published air figure is not the same thing as the litres painted on a tank. NPT and BSP do not share a thread.
What is an air angle grinder?
An air angle grinder is a hand-held pneumatic tool with a right-angle head. A compressor drives an abrasive disc, a cutting disc or a small cut-off wheel. It is not a battery tool and it is not a mains grinder. In the UK it is bought by people who already have a workshop airline, usually for metal cutting, weld dressing or bodyshop work. It is a poor match for a tiny oil-free DIY compressor. Disc form comes first. A 125 mm disc is the regular size for general grinding and cutting.
Best for
- A workshop airline and a 100 mm disc, if you can accept a thin review sample
- Sheet-metal cutting with 3 inch wheels and a 1/4 inch NPT fitting
- A 125 mm head where the compressor can supply about 150 l/min at up to 6.3 bar
Not ideal for
- A tiny oil-free DIY compressor judged by tank litres
- A reader who needs a stated guard and a published air figure on the same listing
- A job that is really a collet die grinder, or a 230 mm cutting head
Mistakes to avoid
- 1
Reading the wattage as mains power
The ABAC field says 800 W and the NuoDunco field says 1,200 W. Both tools are air powered. Those lines are not a wattage you can set next to an electric grinder.
- 2
Judging the compressor by the tank
Tank litres are stored air. The ABAC maker figure is 150 l/min at up to 6.3 bar. One review says that is too much for a home compressor. The other two listings do not state a figure.
- 3
Forcing NPT onto BSP
The NuoDunco fitting is 1/4 inch NPT. UK airlines are commonly 1/4 inch BSP. The ORAZIO connectors are not named as either thread. Do not force the two threads together.
What to weigh up
Disc size and air supply
HighStart with the disc the job actually needs. A 125 mm disc is the regular grinding and cutting size. In this set only the ABAC G-202 is stated for 125 mm, and the maker description adds 10,000 rpm. The ORAZIO is a 100 mm, or 4 inch, head at 11,000 rpm, with one grinding disc in the box. The NuoDunco is a 3 inch cut-off listed at 20,000 rpm. One review of the ORAZIO says suitable discs are hard to find, so check the bore before you assume your existing wheels fit.
Inlet, throttle and guard
HighThe fitting decides whether the tool meets the hose you already own. UK airlines are commonly 1/4 inch BSP. The ORAZIO box includes UK and European 1/4 inch quick connectors. The listing does not call that thread BSP or NPT. The NuoDunco includes one 1/4 inch NPT fitting. Do not wind an NPT male into a BSP female. The ABAC listing does not name an inlet thread, so a BSP airline is not confirmed for that model. A safety throttle and a guard are the other half.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
Sheet metal with a 3 inch wheel
You are cutting sheet metal and you can connect 1/4 inch NPT. The NuoDunco is about £29.99, with a safety switch, an adjustable guard and 4.1 from 25 reviews. It is not a 125 mm grinder.
A 125 mm head and a known air figure
Your compressor can supply about 150 l/min at up to 6.3 bar, and you want a 125 mm disc. The ABAC G-202 is about £62.99, with 3.9 from 20 reviews. The inlet thread is not named, and no lock-off is claimed.
Common questions about air angle grinders
Which air angle grinder is the top pick in 2026?
On star score the top pick is the ORAZIO 100 mm air angle grinder at about £27.99. amazon.co.uk shows 4.7 from 11 reviews. The listing states 11,000 rpm, a safety lever and UK plus European 1/4 inch connectors. It does not state a guard or an air figure. Eleven ratings, including a UK text written before use, are too thin to treat 4.7 as settled. It is not a laboratory result, and it is not a claim that the tool is the safest.
How much does an air angle grinder cost on amazon.co.uk?
On the three listings in this set the ORAZIO 100 mm is about £27.99, the NuoDunco 3 inch cut-off is about £29.99, and the ABAC G-202 125 mm is about £62.99. Those are shelf figures and they will move. No sourced price above about £62.99 sits in the files used here. The wattage fields on two listings are not a reason to pay more. They are not measured electrical power.
How much air does an air angle grinder need?
Only the ABAC G-202 publishes a figure in these files: 2.5 l/s, which is 150 l/min or about 5.3 cfm, at a working band of 4–6.3 bar. Atlas Copco’s installation guide treats 6.3 bar at the inlet as the usual point, and says a 1 bar drop costs roughly 25–30 percent of productivity. The ORAZIO and the NuoDunco do not state consumption. Do not invent it, and do not judge the compressor by tank litres. One ABAC review says the air use is too high for a home compressor. Whether your compressor can hold about 6.3 bar at the tool is set out in air angle grinder compressor size.
Will a 1/4 inch NPT fitting screw onto a UK airline?
Do not force it. UK workshop airlines are commonly 1/4 inch BSP. The NuoDunco package includes a 1/4 inch NPT fitting and does not say BSP. The ORAZIO includes UK and European 1/4 inch quick connectors, and it does not name the thread as BSP or NPT. The ABAC file does not name a thread at all. NPT and BSP are different threads. Use a proper adapter only if you know both ends.
Is the wattage on the listing the electrical power?
No. These tools are air powered. The ABAC listing field says 800 W and the NuoDunco field says 1,200 W. Neither figure is a mains wattage you can compare with an electric grinder. Read the disc size, the free speed, the inlet and any published air consumption instead. The ORAZIO listing does not state a wattage.
Do workplace abrasive-wheel rules apply at home?
In Great Britain, PUWER 1998 binds employers: suitable equipment, maintenance, training and guards. HSE’s HSG17 is the abrasive-wheel guidance after the 1970 regulations were repealed. A householder is not an employer. Northern Ireland uses its own health and safety texts. The disc’s marked rpm must not sit below the spindle. Noise action values are 80 and 85 dB(A), with 87 dB(A) the limit at the ear once protection is counted. Vibration action is 2.5 m/s² A(8) and the limit is 5 m/s² A(8). The ABAC maker line of 89.5 dB(A) and 4 m/s² is for that model only. The Consumer Rights Act 2015 covers goods that are not as described.
When should you look at a die grinder instead?
An air angle grinder drives a disc or a cut-off wheel. A die grinder uses a collet and a mounted point or a burr, and ISO 11148-7 puts collet die grinders outside the disc-grinder part. None of the three listings here is a collet tool. If the job is a port, a weld in a corner or a small burr, start with an air die grinder rather than forcing a disc into that space.
What should you check on the disc before you fit it?
Read the maximum speed marked on the wheel. It must not sit below the spindle speed: 11,000 rpm on the ORAZIO, 20,000 rpm on the NuoDunco, and 10,000 rpm in the ABAC maker description. BS EN 12413 is the bonded-abrasive product standard. The buyer point is that marked speed, the restrictions of use, and a three-year use-by date on organic hand-held wheels. The NuoDunco box lists an HSS saw blade. That is not a licence to fit every blade that mounts. Call a professional if a wheel has burst, the guard is cracked, or the spindle runs on.
Our verdict
The top pick on star score is the ORAZIO 100 mm air angle grinder at about £27.99, with a safety lever, UK and EU 1/4 inch connectors, and 4.7 from 11 reviews. Eleven ratings are too thin to treat that average as settled, and the listing states neither a guard nor an air figure. The best value on shelf price, among the two that are not the top score, is the NuoDunco 3 inch cut-off at about £29.99. It has a safety switch and a guard. It does not replace a 125 mm grinder, and the fitting is 1/4 inch NPT. The ABAC G-202 is the only 125 mm head here, at about £62.99, with a published 150 l/min. It is also the lowest star score, and it does not claim a lock-off. None of these scores is a laboratory test.
Best overallView offer
ORAZIO 100 mm air angle grinder
4.7 from 11 reviews, a safety lever and UK plus EU 1/4 inch connectors, at about £27.99. Eleven ratings are a thin sample.
Best value
View offer
NuoDunco 3 inch mini air cut-off tool
About £29.99 for a 3 inch cut-off with a safety switch and a guard. It does not replace a 125 mm grinder.
Editorial
DIY & tools editor
Air toolsAngle grindersamazon.co.uk listings
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Updated: October 2026
8 sources checked
Guides to air angle grinders
Guides on what to look for, how to use a product, and common mistakes.
Air angle grinder buying guideDisc, inlet, air figure, throttle and guard, as a checklist rather than a ranking.Best air angle grinderWho each of the three listings is for, and who should wait on the thin review samples.How to use an air angle grinderHose, oil, disc, guard and stop. A procedure, not a ranking.Air angle grinder compressor sizeWhether the compressor can hold about 6.3 bar at the tool, not how large the tank is.Air angle grinder vs electricWhen air beats a mains or cordless grinder, and when it does not.
Related comparisons
Sources
Public UK sources from the research digest, used for this page in October 2026. Prices, stars and review counts are from the three amazon.co.uk listings in that digest. Noise and vibration duties apply at work. They are not a certificate for a domestic compressor. Air consumption, noise and vibration are stated only where the ABAC maker line gives them.
- HSE, PUWER overview (retrieved October 2026)
- HSE, HSG17 abrasive wheels (retrieved October 2026)
- ISO 11148-7:2012 (retrieved October 2026)
- Control of Noise at Work Regulations 2005 (retrieved October 2026)
- HSE, hand-arm vibration duties (retrieved October 2026)
- Atlas Copco, air-tool installation pocket guide (retrieved October 2026)
- ABAC G-202, part 2809913206 (retrieved October 2026)
- Toolstation, angle grinder buying guide (retrieved October 2026)
This page contains affiliate links to amazon.co.uk (tag pcuk26-21). If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are from the listings. This is not a laboratory test.