The Koala 400 is “THE ORIGINAL” design in our Koala range. The K400 was the first of the Koala family. Built back in 2014 with a 15mm Hardox chassis and 40mm Hardox arm, the K400 has come a long way.Weighing 758kg the K400 is one of the heavy duty tree shears you’ll come across on the market. A key feature of the Koala Tree Shear design is the replaceable blade in the event it gets damaged in extreme use. Contact us today to order your Trea shear. We are ready to assist you at ATSE