AiuMartiniA, I.: FiziAko optereAenje radnika pri radu ureAajem za buAienje STIHL BT 308 i motornim AistaAem STIHL ... 5-6, 141-146 SUMMARY: Mechanical and manual work in silviculture has been afrequent discussion and research topic aimed at selecting the most appropriate machine for practical use. ... The cutting tool connected to the trimmers was a circular saw with 48 triangle-shaped teeth. ... The tested trimmers were S T IHL FS 360, SHINDAI WA RC 45 and ECHO CLS 4600.