The strongest option of flat-cutter (ploskorez, Fokin hoe), made of titanium, so that it can work
lifelong. It is rust-proof and 1.7 times lighter than a similar flat-cutter made from iron. Titanium blade keeps sharpening for a long time. And it has one more important feature: the pieces of soil do not stick to the blade, and therefore there is no need for constant cleaning. Place an order here:
https://ecominded.net/flat-cutter-titan
Also please watch this
video to see how you can use this flat-cutter: