The most used, the most feared · review
A disc change without a wrench, and electronics that hold the speed when the cut gets deep.
Where we come out The most sensible machine under €100 here, and still without a brake.
Eighty-nine euros for 1,400 W, a tool-free disc change and electronics that hold the speed under load. On specification alone it is the best value on this page.
Everybody loses the pin wrench. What follows is not a search — it is a compromise: a screwdriver used as a lever on the flange, or a cutting disc left in place for a job that wants a flap disc. Both are how people get hurt.
Metabo’s M-Quick nut releases at the push of a button, so changing takes seconds and there is no reason to leave the wrong disc fitted. The catch worth knowing: the nut is a proprietary part, so a replacement comes from Metabo rather than from a bin of generic flanges.
Full-wave electronics that sense the motor slowing and feed it more power, so the disc holds its rated rim speed in a deep cut. A disc that slows stops cutting and starts rubbing — it glazes, it heats the work, and the operator leans harder. Holding the speed is the electronic answer to that whole chain.
Fourteen hundred watts spinning a 125 mm (4.92 in) disc, and no brake, no restart protection and no kickback detection. That combination — high power, no safety electronics — is the argument for the two machines above €200 on this page.
Power, disc change system, electronics 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 | 1,400 W |
|---|---|
| Disc change | M-Quick system — tool-free, at the push of a button |
| Electronics | Tacho-Constamatic full-wave — holds speed under load |
| Disc diameter | 125 mm (4.92 in) |
| Part number | 600347000 |
| Amazon reference | B07PFKB6QC |
| EAN | 4007430338549 |
It is if you switch discs often. The real cost of a wrench is not the twenty seconds — it is that when it is missing, people use a screwdriver as a lever, or leave a cutting disc on for a grinding job because changing is a nuisance. Removing the friction changes behavior, and using the right disc is a safety matter as much as a quality one.
It monitors the motor and increases power as the disc slows, so the rim speed stays near its rated value in a deep cut. That keeps a cutting disc cutting rather than rubbing — a slowed disc generates heat instead of chips, glazes over, and tempts you to push harder. It is the electronic answer to the commonest cause of a snatched cut.
6.9/ 10
The most sensible machine under €100 here, and still without a brake.
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on August 13, 2026.
A workshop that changes between cutting and flap discs a dozen times a day
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
