The most used, the most feared · review
The only machine here that publishes how long its brake takes — 3.5 seconds — instead of just claiming to have one.
Where we come out The most complete safety specification on this page, and the only measurable one.
Two hundred and seventy-nine euros for 2,000 W — and the only entry on this page that gives its brake a number: standstill in 3.5 seconds.
« With brake » appears on several machines. What matters is how long the disc keeps turning after you release the switch, and only FLEX publishes it. Three and a half seconds is the window between finishing a cut and the tool being safe to set down, and it replaces the five to ten seconds an unbraked machine takes.
That period is where accidents happen — not during the cut, but afterwards, when a still-spinning disc meets a bench, a cable or a leg.
Kickback detection cuts the machine when the disc binds, in the same way as the Makita above. The brushless motor is a durability argument rather than a safety one: no brushes to wear or spark, cooler running, more hours per machine.
Anyone reaching for their first grinder. Two thousand watts through a 125 mm (4.92 in) disc is a professional’s tool, and the €70 to €100 machines on this page will do occasional work with less to hold on to. This one is for hours a day, every day — which is also the context in which a published brake time earns its price.
Power, disc diameter, brake time, kickback function, motor type, supply and part number come from the manufacturer’s published specification. Market availability was verified per market on the EAN.
Prices quoted in this text were read on 2026-08-13. The live price is at the top of the page.
| Power | 2,000 W |
|---|---|
| Disc diameter | 125 mm (4.92 in) |
| Brake | Mechanical — standstill in 3.5 s |
| Kickback | Anti-kickback function |
| Motor | Brushless |
| Supply | 230 V, 50/60 Hz |
| Part number | 534017 |
| Amazon reference | B0FMFPQ1ZX |
| EAN | 4030293278578 |
Because the danger is not while you are cutting — it is the ten seconds afterwards. Release the switch on a machine without a brake and the disc keeps turning for five or more seconds, during which people put the tool down, reach for the workpiece, or let it hang beside a leg. A 3.5-second mechanical stop closes that window, and it is the reason brakes are mandatory on many professional sites.
Efficiency and life. There are no carbon brushes to wear, replace or throw sparks, so the motor runs cooler for the same output and survives more hours. On a machine expected to run daily it is a durability feature; on a grinder used twice a month it changes nothing you will ever notice.
8.7/ 10
The most complete safety specification on this page, and the only measurable one.
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom. Listed is not the same as in stock — availability changes daily.
Details checked on August 13, 2026.
Someone using a grinder for hours a day, who wants the disc stopped before the tool is set down
Here because the consumable states this machine by name.
Specifications: the manufacturer sheet for welding and metalworking machines and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
1,400 W · constant electronic · soft start · €100
The same 1,400 W as the Metabo beside it, with a soft start it does not have and a quick-change nut it does.
Best for: Steady, heavy grinding where the machine runs for minutes at a time
900 W · 2,800–11,000 rpm · speed preselection · €61
Variable speed at €61 — which matters because stainless, paint and thin sheet all want a slower disc than steel.
Best for: Mixed work — stainless, painted steel, thin sheet — where full speed is the wrong answer
720 W · 176 mm (6.93 in) grip · flat gear head · €46
The cheapest professional-line grinder here, bought for its 176 mm (6.93 in) grip and its flat head rather than its power.
Best for: Light dressing, deburring and short cuts, where the tool is picked up and put down all day
