The stainless steel heavy duty of theses cuttesr will keep a sharp edge indefinitely when properly used and cared for.
All brands also manufacture their carbon steel alloy upon the same design. You can find them in the market.
This tool is designed for cutting branches flush to the trunk so that the resulting wound can heal quickly with little scarring.
The concave cutter is the single most important tool for bonsai use and for which there is no substitute.
The knob cutter (as known as speherical cutter too) offers a tight cut at the base of the branch so that the wound disappears in a short time.
An additional tool that you will need if you want a finish like the bonsai sprosacionales for which you can not enter substitute in the hardware store.
Spherical Knob Cutter
The spherical knob cutter is designed to remove trunk knobs and roots. The head is shaped like a ball, hence the name ‘spherical’. They produce a hollow, circular cut that heals quickly with a minimum of scarring.
Concave Branch Cutter
This razor sharp tool is designed for cutting branches flush to the trunk. The resulting wound can then heal over quickly with very little scarring.
Will keep a sharp edge indefinitely when properly used and cared for. The Concave Cutter is the single most important tool for bonsai use and for which there is no substitute.
The 8″ version is considered the basic size. 8″”overall. Similar in appearance to above. Made in China.
Round Edge cutter
Between concaveltool and the spherical, to offer better performance, the Japanese bonsai brands developed a new tool some years ago.
The Chinese brands quickly drew their verisions and the result was the curved cut concave, an straight cut based a curved blade. The round edge cutter
It is a half concave cutter and half knob cutter tool. A true delight of precise work. If you are thinking of buying your pruner, you have the benefits of the first two.
An intermediate solution that can save you some dollars and be useful in many occasions.