Summary
A compact, well-built cordless 18V 125mm grinder that offers practical on-site performance with solid build quality and good balance.
Findings
From the workshop perspective, the WX803-9 feels purpose-built for daily trades work. Build quality is robust for a cordless grinder, with a solid feel in the hand and a sturdy guard that adjusts easily. The tool sits nicely in the palm, and the slim, rubberised grip aids control during grinding and cutting tasks. Disc changes are straightforward thanks to a simple spindle lock and tool-free guard adjustment, saving time on busy days. On battery power, performance is steady for light to medium tasks: quick cuts through metal sections, weld removal, and surface grinding are predictable, though heavy, continuous cutting is noticeably less punchy than a corded model, which is to be expected for 18V. The balance minimizes fatigue over longer sessions, and vibration is acceptable for this class of tool. Guard visibility is decent, helping accuracy, and the Worx PowerShare ecosystem makes sense if you already own Worx tools, delivering real value through battery sharing. Overall durability feels sufficient for normal on-site use when treated with sensible care, and the price-point is competitive for tradespeople who can leverage existing batteries.
Pros
- Solid, well-balanced build quality for a cordless grinder
- Tool-free guard adjustment and easy disc changes
- Comfortable grip and good in-use control
- Compatible with Worx PowerShare batteries and ecosystem
- Competitive value for money when using existing Worx batteries
Cons
- Not as powerful as corded grinders for heavy, continuous cutting
- Runtime is battery-dependent; longer jobs may require spares or quick swaps
- Lacks some premium features found on higher-end models (e.g., advanced speed control)
- Dust management is limited compared with dedicated dust-assisted systems
- Guard and adjustment, while functional, may require occasional realignment for unusual angles
Price at time of review: £95.03