What bonsai tools need be sharpened?
Its true that not all bonsai tools need to be sharpened. In general there are two types of bonsai tools that need sharpening: those that cut, such as bonsai shears and pruners; and those that bite, such as concave cutters and knob cutters. Each type of bonsai tool has different sharpening instructions, and it’s important to follow the correct steps. But before breaking out the sharpening stone, check your manufacturer’s warranty, if there is one. In most cases, sharpening bonsai tools will void the warranty. The mechanics of a sharp edge So how do you know if your bonsai tools have lost their edge? Try rubbing your thumb lightly – and – carefully across the edge. If the edge grabs into your thumb pad, then it’s probably still sharp. To calibrate your thumb, test a known sharp edge like a new razor blade periodically, always being careful not to cut yourself. The different types of sharpening stones There are many good sharpening stones on the market today. However, if a stone is too ha
