Depending on the principle of secateurs can be divided into three types: scissors, bypass pruner and thrust system.
Scissors consist of two sharpened blades and are designed for branch diameter up to 1 cm, and unconsciousness shoots of any thickness. The tools with long handles can be cut even very thick branches of shrubs. These models are suitable for pruning at the base of bushes and hard. Clean cut-off of the instrument leaves much to be desired. Secateurs or scissors to “chew” the branch, which significantly reduces the possibility of its application – only for non-living plant.
Bypass pruner has blades with different assignments. Operating the blade of such models has cut and slides on the reference parallel, which only fixes the branch, no cutout in it. Bypass pruners, unlike scissors, does not chew the branch, and make a neat cut. But there is one subtlety: the working blade should be drawn to the main branch. And the healing of the branches depends on the quality of cut.
Thrust systems consist of a mini-anvil and a keen blade. The first fixes the branch, while the blade cuts it. Passing timber, the blade rests against the anvil, and stops. As is the case with the scissors, cut is not very clean, and therefore resistant system is also more suitable for dry wood.
Blade shears are made of carbon steel, stainless steel or coated steel, which also affects the operational characteristics of the tool. Carbon steel is strong enough and long tupitsya. However, it is easily subject to corrosion, so it is often covered with chrome or Teflon. Stainless steel does not have this problem, but inferior to carbon on the cutting performance and durability.
The gap between the blades also important. He should be minimal, and blades themselves have to walk easily. That gap between the blades makes pruner chew a twig. But it is not good and too dense arrangement of the blades, since then, additional efforts at pruning, and cutting blade has no edge more quickly.
Pay attention to and to handle pruners. They should be comfortable and durable. Typically, handles are made of plastic, steel or aluminum alloys. Handles may be rubber coated or plastic lining. The shape of handles may be with recesses for the fingers, have an additional protective device or shackle rotation shear. Last device reduces the load on the brush and rubbing his hands to prevent blisters.
Trees sheared by Garden pruner. Do such tools cutting mechanism is usually located at the end of two-, three-meter pole. Sometimes the length of the pole can reach 4-5 meters. The blade of the secateurs is controlled by a system of levers or ropes. In some models has a telescopic pole, that is, it is possible to adjust its length, and to keep such a tool is more convenient. The design of Garden pruners may include mounting attachments to them in the form of saws or plodosemnika.
There are varieties of shears, as suchkorezy. Suchkorezy need for difficult and large branches. Long handles this model easier to work by increasing the lever. Thus, if the work is usually shears required to make a load of 15 kg, then the secateurs with long handles, this figure will be only 5 kg. Garden pruner mechanism may consist of either two sharpened blades, or one team and one sharpened. Sometimes the blade has a groove for removal of juice, which is also somewhat easier job.
Thus, the hedge can be described as very productive, rich, but compact instruments with an affordable price.