Columbia Corner Cobra No-Coat Adjustable Corner RollerThe Corner Cobra is an amazing time saving tool. It allows the user to roll out No Coat and other structural corner beads at almost all inside and outside angles. Doing the job quicker and better. Another one of Columbia's patented products that is changing the time it takes to finish a job. Features: Works on inside and outside angles from 85 to 180 degrees Sets No Coat 350 and 425 as well as regular tapes Tracks the centre and outside edge leaving