Grinder · Reviewed 2026-06-22 · Updated 2026-08-03
KINGrinder K6 Review
90% of the J-Ultra's capability at half the price — the best-value hand grinder of 2026.
Outer-adjustment ring and 22-micron clicks at a giveaway price.
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Current UK price
£99
Our verdict
Outer-adjustment ring and 22-micron clicks at a giveaway price. It earns a 4.5/5 because, after measuring 50 s and pushing it through our standard 40-shot protocol, it does what it claims — consistently and without drama. Best for: Budget-first buyers who still want genuine espresso capability.
Pros & cons
What we love
- Outer adjustment ring (no disassembly)
- Genuine espresso range at £99
- Drill-compatible for lazy mornings
- Solid metal build
What could be better
- Clicks are coarser than the J-Ultra
- Feels heavier than rivals
- Numbers rub off over time
How it performed
Our measurements
- Grind time (18 g)
- 50 s
- Retention
- < 0.1 g
- Espresso range
- Usable, slightly wide
All measurements from our standard 40-shot test protocol. Full methodology on How We Test.
Specs at a glance
- Burr
- Conical steel, 48 mm
- Adjustment
- 22 µm per click
- Capacity
- 40 g
- Weight
- 630 g
Who should buy it?
Buy the KINGrinder K6 if budget-first buyers who still want genuine espresso capability. Skip it if you need clicks are coarser than the j-ultra.
See it ranked
How it compares
Frequently asked questions
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