Ideal for quickly cutting firewood and logs to length. The pin is mounted with just a few hand movements using the combination key on the screw for the bar attachment. The coupling of the length cutting rod is then done in a flash with the one-hand quick attachment: press the button and attach or remove the KOLIBRI. Simply place the disc on the right side of the log end and saw as usual. The KOLIBRI can be removed without having to set down the saw. Easy and quick assembly on all common types of chainsaws!.