Worx angle grinder buying guide

Updated: October 2026

You are looking at Worx angle grinders on amazon.co.uk and the cheapest sticker is not the cheapest tool you can switch on. A bare WX803.9 at about £81.41 still needs a 20 V PowerShare battery and a charger. The WX812 kit at about £144.49 already includes a 4.0 Ah pack and a charger. This buying guide follows disc class, then the box, then the safety wording the listing names. Shelf prices and star counts are from the five amazon.co.uk listings on 16 October 2026. This is not a lab test. A qualifying purchase through our links can earn a commission at no extra cost to you. The ranking sits on the Worx angle grinder comparison.

Our top picks

Badge	Product	Disc	Supplied as	Anti-kickback	Note	Price	Offer
Best overall	Worx Worx WX801.9 76 mm mini bare	76 mm	Bare tool	Not named	9.2	about £60.03	View offer
	Worx Worx WX812 125 mm kit	125 mm	Kit, 4.0 Ah	Named on listing	9.2	about £144.49	View offer
Best value	Worx Worx WX803.9 125 mm bare	125 mm	Bare tool	Not on UK listing	9.0	about £81.41	View offer

Best overall

Worx Worx WX801.9 76 mm mini bare

9.2/10about £60.03

View offer

Rank 2

Worx Worx WX812 125 mm kit

9.2/10about £144.49

View offer

Best value

Worx Worx WX803.9 125 mm bare

9.0/10about £81.41

View offer

On this page

1.Why the cheapest Worx is not the cheapest set
2.Choose the disc class first
3.Count what is in the box
4.Check the safety wording in the listing
5.Plan for honest runtime

Why the cheapest Worx is not the cheapest set

A bare tool and a kit are not the same purchase. The WX803.9 body is about £81.41 and the WX801.9 is about £60.03. Neither includes a battery or a charger. The WX812 kit is about £144.49 and includes one 4.0 Ah pack and a charger. A 2.0 Ah PowerShare pack was £31.99 on the Worx UK batteries page on 16 October 2026, and a charger is still extra. The corded WX717 at about £60.36 needs no pack, and that holds only beside a socket with a 115 mm disc.

Choose the disc class first

Disc diameter decides the job. The 125 mm tools are the WX803.9 and the WX812. Screwfix’s guide treats 125 mm as the size for regular small-scale work and quotes about 38 mm of cut depth. That Screwfix figure is a general guide, not a measured Worx cut. The WX717 is 115 mm, which Screwfix puts at about 30 mm of cut depth for occasional household use. The WX801.9 is 76 mm at 19,000 rpm. That speed is the small disc, not more cutting power than 8,600 rpm on 125 mm. Reviewers use it for nails and thin tube, then report stalling under heavy pressure, including welds. The WX990 takes 50 mm discs and is not for thick metal.

Testsieger

Worx Worx WX801.9 76 mm mini bare

9.2/10about £60.03

View offer

Count what is in the box

A model number ending in .9 is tool-only in this set. The WX803.9 box lists a handle, a cutting protector, a key and a metal roughing disc. The WX801.9 lists cutting discs and a roughing disc for 76 mm, and still no battery. The WX812 lists the grinder, a 4.0 Ah battery, a charger, a metal grinding disc, a wheel guard and a spanner. The WX717 lists a handle, a metal grinding disc and a wrench. A roughing or grinding disc is not a cutting disc. On the WX812 the included-components list shows no case, though one reviewer reports one broken. Pack size is on the Worx angle grinder battery page.

Check the safety wording in the listing

Only the WX812 listing names electronic anti-kickback. Reviewers of that kit say the cut-out works. The WX803.9 listing does not name it or a motor type. Worx Europe’s page describes a brushed motor and lists electronic anti-kickback, so that claim sits on the manufacturer page. The WX717 names tool-free guard adjustment and does not name anti-kickback. A guard still has to stay between you and the disc, and the disc’s marked maximum speed has to meet the tool’s no-load speed. The listings give no vibration or noise figure. The WX801.9 listing states no warranty term.

Plan for honest runtime

UK reviewers of the WX803.9 say a smaller pack drains quickly, and one says 5.0 Ah is the minimum. That is one comment, not a timed test. The listing gives no runtime. Budget a 4.0 Ah pack, or a second pack. The WX812 already ships with 4.0 Ah. Ignore the 2,800 W field on the WX803.9 and the 40 W field on the WX801.9. Neither is a plausible cordless power figure. If you already own PowerShare packs, the best Worx angle grinder page sets the skip rule. Fitting a disc is the how to use a Worx angle grinder page.

Common questions

Which Worx angle grinder should I buy?

Buy the WX812 kit at about £144.49 if you own no PowerShare battery and you need a 125 mm disc. Buy the WX803.9 at about £81.41 only if you already own a 4.0 Ah class pack and a charger. The WX801.9 is for nails and thin tube. The WX717 is for work next to a 230 V socket.

Is a bare Worx tool cheaper than a kit?

The body is cheaper. The WX803.9 is about £81.41 against about £144.49 for the WX812, a gap of £63.08. That gap has to pay for a battery and a charger. A 2.0 Ah pack at £31.99 still leaves a charger to buy, and reviewers say a small pack runs flat quickly on the 125 mm tool.

Is 115 mm or 125 mm better for home DIY?

Pick 125 mm when you expect regular small-scale cutting in steel or tile. Pick 115 mm when the tool is the corded WX717 and the work is occasional and close to a socket. Screwfix’s guide quotes about 30 mm of cut depth for 115 mm and about 38 mm for 125 mm. Those figures are a general guide, not a Worx test on your disc.

Does a Worx angle grinder have anti-kickback?

The WX812 listing names electronic anti-kickback, and reviewers say the cut-out works. The WX803.9 listing does not name it. Worx Europe’s page for that model does. The WX717, WX801.9 and WX990 listings in this set do not name it. Named on a page is not the same as a guarantee that a jam cannot hurt you. The guard still has to stay on.

How long is the Worx warranty?

Worx UK states 2+1 years for a Worx-series tool if you register within 30 days of purchase. The WX812 and WX803.9 amazon.co.uk listings say three years if you register online. The WX717 listing says two years, plus three with online registration. Register inside 30 days and keep the confirmation, because the pages do not all use the same sentence.

Sanders