The innovation responsible for both the unique appearance and the unparalleled level of performance is Bosch's patented Axial-Glide System. Beyond giving the GCM12SD its distinctive profile, Bosch's Axial-Glide System eliminates three key challenges miter saw users have endured since the first slide systems debuted many years ago. While the traditional sliding compound miter saw approach enables users to make wider cross cuts, that system takes up more space and is prone to misalignment and stickiness over time. By replacing the sliding rail system with a hinged or articulating glide arm system – similar to the linkage Refurbished in a four-bar suspension design – Bosch created a more compact miter saw that delivers durable precision, remaining true and smooth over time.