Sawset Pro is a carpenter's protractor that has been redesigned to be compatible with any miter saw. Unlike a standard protractor its scales have been calibrated to give miter saw settings with absolutely NO MATH! The Sawset Pro is double sided with 2 large easy to read scales, one for double miters and the other for single miters. With this simple to use tool and your T-bevel it just takes 2 easy steps to find absolutely any saw settings for any angle. This durable ABS plastic protractor is perfect for both Pros and DIYers alike! Sawset Pro eliminates guessing, mistakes and waste. This saves you time and money. It will pay for itself the first time you use it!