I recently replaced a 12 inch Bosch mitre saw, It had given great service for many years but needing space I brought the Bosch Axial glide which sits flush up against the wall and has given me about a foot in front of the saw station it sits on compared to the old Bosch. It uses a hinge system rather than tubular rails so you have nothing poking out the front or the back which gives more freedom for the placing of the wood and is both precise and repeatable.