Tool to cut branches of support species and timber trees

I grow lot of support species for mulch creating and shade in the farm. Shade is very critical for me since the summer is very harsh and no rain season extends to 5-6 months. I have some glyricidea and have planted another 100 or so in this year. In addition to this I have moringa, mahagony, teak and few other local trees. Most of these trees I am planning to cut atleast twice in a year during the rainy season. Once the rain stops, I won't cut them any more.

Coconut buying people using to bring long poles and a special knife attached to it for harvesting coconut. I thought that will be useful for cutting branches of trees since that knife looked very robust and sharp at the same time. Found a local blacksmith and made one knife for 800/ Indian rupees and I also attach it with bamboo pole and cut branches using that. Its shape is little bit tuned for coconut harvesting so that it easily moves to the bunches of coconut. I may have to make one more adjusted to my branch cutting purpose, but it is immensely useful. The knife is tied to the pole using cycle tube piece made like a tape.