The best Bosch orbital sanders, compared.
Top pick: Bosch GEX 18V-125 (L-BOXX) – Highest score in this set: Professional 18 V, 125 mm, dust bag and L-BOXX, at £145.00 with 4.8 from 2,029 reviews. No battery. Reviews want a vacuum and note a stiff latch. Best value: Bosch PEX 220 A – Best value among corded 125 mm random-orbit tools with a review count above 300: £48.49 and 4.5 from 4,335 reviews. No speed dial. Dust box and hook-and-loop are the repeated complaints. Updated October 2026.
Stored reviews are mostly furniture, doors and painted wood. The split that matters is pad size, orbit diameter, a cable versus a battery, and whether your packs are green or blue 18 V. Those two 18 V systems do not fit each other. Every cordless price excludes the battery and the charger. The 220 A has one speed, three sheets, and a microfilter that reviews say still leaves dust in the room. Motion, pad, orbit and battery colour are in the [Bosch orbital sander buying guide](/hub/sanders/bosch-orbital-sander/sub/bosch-orbital-sander-buying-guide). A Bosch orbital sander on amazon.co.uk is either a random-orbit tool with a round pad or a sheet orbital with rectangular and delta plates. The round-pad tools are the PEX 220 A, the PEX 400 AE, the EasyOrbit 18V-10, the UniversalOrbit 18V-20, the GEX 18V-125, sold solo or with an L-BOXX, and the GEX 34-150.
Stored reviews are mostly furniture, doors and painted wood. The split that matters is pad size, orbit diameter, a cable versus a battery, and whether your packs are green or blue 18 V.
28 products checked · 62 hrs invested · +24,100 readers
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Personal buying guide
Question 1 of 2
What are you sanding?
The Bosch GEX 18V-125 with L-BOXX is the same Professional 18 V class of sander at £145.00, rated 4.8 from 2,029 amazon.co.uk reviews, with L-BOXX 136, a dust bag and one grit-120 sheet. Reviewers call it well built and comfortable, and they use it on interior doors. One review describes a room finished on a 4.0 Ah ProCORE pack, which is one report. Dust extraction is described as effective with a vacuum, and the port is criticised because it is not tapered. The title includes no battery and no charger, and reviewers who added both found the kit dearer than the shelf price. The stiff battery latch appears in this file as well. You pay more than the solo ASIN for the case, and you still need a matching Professional 18 V pack.
Pros
Cons
Best for: You already own Professional 18 V packs and want the GEX 18V-125 stored in an L-BOXX.
Less suitable: You have no blue batteries, or you already own a case and only need the solo body.
Specifications
Common questions
Does this GEX 18V-125 include a battery?
No. The title is a Professional 18 V system tool and the included parts stop at the tool, pad, one grit-120 sheet, dust bag and L-BOXX 136. The charger is not in the box either, so £145.00 is not the cost of starting from nothing.
What is the difference from the solo listing?
This ASIN, 0601372200, adds L-BOXX 136. The solo ASIN is 0601372201 and does not list that case. The pad size is still 125 mm. You are paying for the case, not for a different orbit.
What warranty does the listing state?
The listing states a 24 month manufacturer warranty. That line is on this L-BOXX ASIN. It does not add a battery, and it does not change the stiff latch that reviews describe.
The Bosch GEX 18V-125 solo is a bare Professional 18 V random-orbit sander at £109.98, rated 4.7 from 1,061 amazon.co.uk reviews, listed as brushless with a 125 mm pad, a dust bag and one grit-120 sheet. Reviewers call it light, low in vibration, and a step on from an older corded sander. Dust collection improves once a vacuum is connected, and the bag alone is the limit they name. The battery latch is very stiff, and the scope has no battery, charger or L-BOXX. Amazon bullets do not state a speed dial. You buy the body if you already own a Professional 18 V pack, and £109.98 is not the cost to start from nothing.
Pros
Cons
Best for: You already own Bosch Professional 18 V batteries and want a 125 mm body without paying for another case.
Less suitable: You have no Professional packs, or you only own green POWER FOR ALL batteries.
Specifications
Common questions
Which battery does the GEX 18V-125 solo use?
The listing says an 18 V lithium-ion pack from the Bosch Professional 18 V system. No pack is in the scope line. Green POWER FOR ALL packs do not fit this body. The GEX manual recommends a ProCORE18V of at least 4.0 Ah for full performance.
Does this ASIN include a case?
No. The scope is the pad, one grit-120 sheet and a dust bag. The L-BOXX kit is a different ASIN, 0601372200, at a higher shelf price. This solo model number is 0601372201.
What dust hardware is in the box?
A dust bag, part 2 608 000 715. Reviews say a vacuum collects more than the bag alone. The bag is not Class M extraction.
The Bosch GSS 18V-13 is a bare Professional 18 V sheet sander at £227.91, rated 4.7 from 460 amazon.co.uk reviews, with three plates, a dust bag, a hole punch and an L-BOXX. The plates are 80 x 130 mm, a delta of 100 x 150 mm, and 113 x 101 mm. Reviewers used it on weathered doors before paint and on kitchen cabinets, and they like having more than one plate. It is a sheet orbital, so the pad is rectangular or delta. One UK review says the tool ran on only two of six Bosch 18 V packs, which the listing does not explain. The dust port gets in the way in some positions, and there is no battery in the box. You pay the highest shelf price in this set for corners and cabinet faces, and a Professional pack is still extra.
Pros
Cons
Best for: You already own Professional 18 V packs and you need corners and cabinet faces as well as flat panels.
Less suitable: You want a round random-orbit pad for a door face, or you have no blue batteries.
Specifications
Common questions
Is the GSS 18V-13 a round random-orbit sander?
No. The listing is a cordless sheet orbital with three plates: 80 x 130 mm, a delta of 100 x 150 mm, and 113 x 101 mm. Bosch UK gives it a 1.6 mm orbit. A high star rating does not make it the round-pad pick.
Which batteries does the title require?
The title says the Bosch Professional 18 V system, and it says the tool is without a battery and charger. Green POWER FOR ALL packs are the other Bosch 18 V system, and they do not fit this tool.
Does every Bosch 18 V pack fit, according to the reviews?
One UK review says the tool ran on only two of six Bosch 18 V packs. The listing itself does not explain that limit. Treat it as one report, not as a full compatibility table.
The Bosch PEX 220 A is a corded 125 mm random-orbit sander at £48.49, rated 4.5 from 4,335 amazon.co.uk reviews, listed at 220 W and 1.29 kg. Reviewers use it one-handed on furniture and say it takes stubborn lacquer off dressers and drawers. The same file says the microfilter box leaves a lot of dust in the room, and that hook-and-loop sheets stop sticking. Speed control is not in the bullets, and that missing dial is a repeated complaint. Three Red Wood sheets come in a carton, which several buyers found too few once the first disc failed. The specification table also prints 220 amps beside the 220 W bullet, so the power line is not a single figure. You get the largest review sample and the lowest shelf price in this set, and you still work at one speed with a box that is a bin for dust.
Pros
Cons
Best for: You want a first corded 125 mm Bosch sander for furniture and doors, and you do not already own a Bosch battery platform.
Less suitable: You need a speed dial, a 150 mm pad, or dust control beyond the microfilter box.
Specifications
Common questions
Is the Bosch PEX 220 A cordless?
No. The listing gives the power source as corded, at 240 V, with a 220 W motor in the bullets. It does not take a green or a blue Bosch pack. Use the rating plate, because Amazon voltage fields in this set say 240 V or 220 V.
Does the PEX 220 A come with sanding sheets?
Yes. The scope line lists three Red Wood sanding sheets, plus the microfilter and the rubber pad. Several buyers found three sheets too few once the first disc failed.
Does the listing include a speed dial?
Speed control is not in the bullets. Reviews criticise the lack of a speed setting. You work at one speed. The Bosch UK page gives this model a 2.5 mm orbit.
The Bosch UniversalOrbit 18V-20 is a bare 18 V sander at £83.59, rated 4.5 from 92 amazon.co.uk reviews, with electronic speed selection, a microfilter box and a paper assistant. Reviewers used it on walls and tired furniture and said the paper assistant helped line the discs up. The Amazon file does not give a pad diameter. A pack runs flat before a spare is charged, in the complaints, and one reviewer found the tool heavy on walls and ceilings. Washing the filter stopped it filtering. One review says there is no front handle. You get a speed setting the PEX 220 A listing does not have, and the shelf price still excludes the battery.
Pros
Cons
Best for: You already own green Bosch packs and want a speed setting for painted and varnished wood.
Less suitable: You need a stated pad diameter on the Amazon page, or you expect one pack to finish a large ceiling.
Specifications
Common questions
Does the UniversalOrbit 18V-20 include a battery?
The scope line lists one K80 sheet, a paper assistant and a carton. A battery is not in that line. This is a green cordless tool, so it needs a POWER FOR ALL pack you already own, or one you buy separately.
Does it have speed control?
The bullets say electronic speed selection for a material-specific setting. That is the dial the PEX 220 A listing does not name. The Amazon file still does not give a pad diameter.
What surfaces does the listing name?
The bullets say wood, plaster, painted, varnished and polished surfaces. A question about metal is unanswered in the raw file. Do not treat an unanswered question as a yes.
The Bosch PEX 400 AE is a corded 125 mm sander at £105.00, rated 4.4 from 328 amazon.co.uk reviews. The title and a bullet say 350 W, variable speed and a plastic case, while the Bosch DIY page states 370 W, so those two sources are not the same watt figure. Reviewers call it faster on old finishes than a smaller Bosch they already owned, and they use a front grip for control. The case feels thin in several reviews, the dust box leaks fine dust, and discs come off the hook-and-loop pad. One reviewer reported sparking, which is a single report in the file. The included-components field only says 1, so the sheet count is not stated. You pay more than the PEX 220 A for a speed dial and a listed case, and disc retention is the fault that comes back.
Pros
Cons
Best for: You want a corded 125 mm Bosch with a speed dial and you will check disc fit before a long session.
Less suitable: You want the lowest shelf price, or you need the sheet count printed on the listing.
Specifications
Common questions
What power does the Amazon title give?
The title and a bullet both say 350 W. The listing voltage field says 220 V and the pad is 125 mm. The Bosch DIY page states 370 W and a 5 mm orbit. Keep both figures. Do not treat one of them as a typo you can silently fix.
Does the PEX 400 AE come with a case?
The title says it is supplied in a plastic case. Reviews disagree on whether that case feels solid or thin. Several reviewers call it thin. The case is still named, which the PEX 220 A listing does not do.
How many sanding sheets are listed?
The included-components field only says 1, so the sheet count is not stated there. Do not assume the three Red Wood sheets from the PEX 220 A. Check the carton against the listing before a long session.
The Bosch EasyOrbit 18V-10 is a 125 mm random-orbit sander at £69.00, rated 4.4 from 59 amazon.co.uk reviews, listed at 900 g with one K80 sheet and a paper assistant. Reviewers like the missing lead on doors and say it fits green Bosch batteries they already owned. The title says the tool is sold without a battery, while some review text describes a pack in the box, so the carton is not settled by the star line alone. Speed control is not in the bullets, and one reviewer wanted a dial. Dust hardware is not named in the extracted scope. Fifty-nine ratings is a thin sample beside the PEX 220 A. You pay a bare-tool price for a light sander, and a charger plus a matching pack are extra if you do not already own them.
Pros
Cons
Best for: You already own green POWER FOR ALL packs and want a light 125 mm body for doors and small painted pieces.
Less suitable: You have no Bosch batteries, or you own only Professional 18 V packs.
Specifications
Common questions
Does the EasyOrbit 18V-10 include a battery?
The title says without a battery. The scope lists the tool, one K80 sheet, a paper assistant and a carton. Some review text describes a pack in the box, so the carton is not settled by the star line alone. Treat the title as the listing claim.
What pad size is listed?
The title states a diameter of 125 mm. The listing weight is 900 g, the lightest tool in this set. Bosch UK gives this model a 2 mm orbit, which suits finer work than a 5 mm orbit.
Can it be used on metal?
The raw file asks that question and does not answer it. The title limits the job to wooden, varnished and painted surfaces. An unanswered question is not a yes for metal.
The Bosch GEX 34-150 is a corded 150 mm sander at £200.00, rated 3.7 from 35 amazon.co.uk reviews, listed at 240 V and 2.89 kg. It is the only 150 mm pad in this set. The included-components line names an auxiliary handle, a dust box, a pad, a C470 sheet and an extraction adapter. Several UK reviews say the handle and the dust box were not in the carton, and that the photograph shows them. Other complaints include stalling under pressure, no hard case, and one failure within a week. Thirty-five ratings is a small file beside the GEX 18V-125. You are buying the larger pad together with a parts dispute, and the listing weight is 2.89 kg.
Pros
Cons
Best for: You specifically want a corded 150 mm Bosch pad and you will open the carton against the included-parts line before you accept it.
Less suitable: You want a settled review file, a confirmed dust box, or a lighter 125 mm tool for furniture.
Specifications
Common questions
What voltage does this GEX 34-150 listing state?
The raw file says 240 V and a corded supply. The model number on the listing is 0601372870. UK mains are nominally 230 V. Use the rating plate on the tool. Do not assign this listing a 110 V supply from a different order number.
Are the auxiliary handle and dust box in the box?
The included-components line names both. Several UK reviews say they were not in the carton and that the photograph shows them. Open the box against that line before you accept the delivery.
What pad size is listed?
The disc diameter field is 150 mm. It is the only 150 mm pad in this set. Item weight is 2.89 kg. Bosch’s catalogue card for this model gives a 4 mm orbit. Other 150 mm orbital sanders are a separate comparison.
Eight amazon.co.uk Bosch orbital sanders were scored for this page. Weights sum to 100. Orbit diameters come from Bosch UK pages, not from the Amazon raw files. Review themes come from the stored UK notes. There was no lab test. Shelf prices on 19 October 2026 ran from £48.49 to £227.91.
Amazon evidence
30%Star rating on amazon.co.uk, with a heavy deduction when the count is below about 50 and a lighter deduction below 200. A 4.8 from 2,029 reviews is not scored like a 4.4 from 59.
Listing fit for doors and furniture
35%Round random orbit versus a sheet orbital, a stated pad, speed control when the bullets name it, dust hardware that is actually in the scope line, and a battery platform the title names. A carton that reviews say does not match the photograph loses this block.
Review outcome
20%UK themes for furniture, doors and cabinets score higher than dust in the room, sheets that will not stick, a stiff latch, or a missing handle and dust box.
Value
15%Shelf price in GBP against what the listing actually includes. A bare cordless price does not win this block, because the battery and charger are extra.
The checks run in this order: motion and pad, orbit diameter, cable or the matching battery, dust hardware, then what the carton actually contains. The table is eight amazon.co.uk Bosch listings stored on 19 October 2026. Prices run from £48.49 to £227.91. No tool was timed in a lab. A star rating does not, on its own, tell you whether the pad is round or a sheet.
A Bosch orbital sander on amazon.co.uk is either a random-orbit tool with a round pad or a sheet orbital with rectangular and delta plates. The round-pad tools in this set are the PEX 220 A, the PEX 400 AE, the EasyOrbit 18V-10, the UniversalOrbit 18V-20, the GEX 18V-125, sold solo or with an L-BOXX, and the GEX 34-150. The GSS 18V-13 is the sheet orbital, with three plates. The jobs in the stored reviews are mostly furniture, doors and painted wood.
Every cordless listing here excludes the battery and the charger. The PEX 220 A at £48.49 is a complete corded tool. A £69 EasyOrbit is not complete until you own a POWER FOR ALL pack.
POWER FOR ALL and Professional 18 V do not fit each other. A green pack will not run a GEX or a GSS. A blue pack will not run an EasyOrbit or a UniversalOrbit.
The included-parts line names an auxiliary handle and a dust box. Several UK reviews say those parts were missing and that the photograph shows them. Open the carton against the listing.
Random orbit is the round pad, for faces. Sheet orbital is the GSS, for corners and cabinet edges. Only the GEX 34-150 is 150 mm, and that listing is the one whose handle and dust box reviews dispute. Orbit diameter, from Bosch UK rather than the Amazon file, runs from 1.6 mm on the GSS and 2 mm on the EasyOrbit, through 2.5 mm on the PEX 220 A, the UniversalOrbit and the GEX 18V-125, to 4 mm on the GEX 34-150 and 5 mm on the PEX 400 AE.
A microfilter or a dust bag collects some dust. It is not Class M extraction. HSE wants on-tool extraction into an M or H unit for wood dust, holes that line up with the pad, and for most sanding in enclosed spaces a mask of at least APF 20. FFP3 is the example HSE gives. Do not wash the filter and expect it to work. One UniversalOrbit review did that and the filter stopped filtering. Do not sweep or blow the dust. If paint may contain lead, do not dry-sand it.
Three typical situations, each with a recommendation from this comparison.
You are sanding a dresser or a door and you do not already own a cordless platform. The corded PEX 220 A is the best value at £48.49, with 4.5 from 4,335 reviews, a 125 mm pad and three sheets. There is no speed dial in the bullets. If you want that dial and faster removal, the PEX 400 AE is the corded step up, and disc retention is the fault that comes back.
You move between rooms and the packs you own are Bosch Professional 18 V. The top pick is the GEX 18V-125 with L-BOXX, at £145.00, with 4.8 from 2,029 reviews. The battery and charger are still extra. The solo listing is the same class of body if you already have a case and do not want to pay for another one.
You need corners as well as flat cabinet faces, and you will pay for three plates. The GSS 18V-13 is the sheet orbital in this set, at £227.91, with 4.7 from 460 reviews, a delta plate and an L-BOXX. It needs a Professional 18 V pack, which is not in the box. A high star rating does not make it the round-pad pick.
The top pick is the Bosch GEX 18V-125 with L-BOXX, at £145.00, with 4.8 from 2,029 reviews. It is a Professional 18 V, 125 mm random-orbit sander with a dust bag and a case, and the battery is still extra. The best value is the corded PEX 220 A at £48.49, with 4.5 from 4,335 reviews, three sheets and a microfilter, and no speed dial in the bullets. The GSS 18V-13 is a sheet orbital at £227.91, for corners and cabinets, not the round-pad pick. A higher shelf price is not treated as a better sander when the battery is missing or the carton is disputed.
Bosch GEX 18V-125 (L-BOXX)
Highest score in this set: Professional 18 V, 125 mm, dust bag and L-BOXX, at £145.00 with 4.8 from 2,029 reviews. No battery. Reviews want a vacuum and note a stiff latch.
Bosch PEX 220 A
Best value among corded 125 mm random-orbit tools with a review count above 300: £48.49 and 4.5 from 4,335 reviews. No speed dial. Dust box and hook-and-loop are the repeated complaints.
Editorial
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.
Guides on what to look for, how to use a product, and common mistakes.
Sources taken from the research digest. Prices, stars and review counts are the stored amazon.co.uk listing figures.
This article contains affiliate links. If you buy through these links we may earn a small commission, at no extra cost to you. Prices, stars and review counts come from stored amazon.co.uk listings. We did not run a lab test.
