GB Double Ended Mill bars are especially designed for mechanical timber processing. Unique design allow for mounting a power head each end of the bar. The HSD mount type is designed to fit a large range of professional chain saws. Included with each bar is a set of spacers which significantly increase the range of mounts able to be used. This 14mm mount has been designed to suit all large Stihl and medium size Stihl, Husqvarna and Jonsered chainsaws with spacer supplied, it will also fit various other brands.