HT-KM Shaft Extension (Metal)This STIHL KombiSystem pole pruner attachment makes quick work of pruning trees and shrubs. When branches and shrubs need to go, slide the HT KM pole pruner attachment onto your STIHL KombiMotor. This STIHL KombiSystem attachment features a side access chain tensioner for easy chain adjustments. The oil tank cap features a retainer, so it stays put during refilling. The HT KM attachment comes with a 12 or 10" bar and chain. NOTE: STIHL KombiMotors and