The Tapco S2X Material Stop Gauge is a siding brake accessory that mounts to the side of your siding brake. This time saving siding brake tool is adjustable along the length of the brake to adapt to different lengths. It is designed to be used in conjunction with the Tapco Pro Cut Off, Tapco Max Cut Off, or any utility knife, as its red tape measure will automatically allow you to calculate your offset. The Tapco S2X Material Stop Gauge is a great accessory by itself or to be used in conjunction with the Tapco M2X Measuring System and allows for you to stack your pieces of metal into the brake, saving handling time. Increased efficiency on repeat bends.