A disc harrow with a difference, the Australian-designed Kelly Harrow has its discs connected by a chain rather than being mounted on an axle. The latest generation of this intriguing tool is being produced in Germany for the European market, and we tried out a mid-sized, 9.0m version

The main selling point of the Kelly Diamond Harrow is that its discs are connected to each other in a hookand-eye arrangement that allows it to follow ground contours for a fast, shallow cultivation pass. A handful of machines have been sold into the UK market, supported from a European parts hub, and Kelly remains on the lookout for more dealers.