The new lightweight gearbox design provides high-speed precision while pruning, makes handling easier when reaching for high branches, and with a new squared-shaft design, the telescoping shaft has increased rigidity, providing control and precision while reducing fatigue. The outside guide bar and saw chain mounting of the HT 135 provides users with better flush-cutting abilities. Rounded out by great features such as the semi-automatic choke lever, one-touch stop, no-slip grip design, and 3/8" STIHL PICCO™ Micro™ Mini saw chain (61 PMM3), the HT 135 is built to meet the demands of the most discerning professionals.