7-Inch miter saw protractor with two scales-red -Inchmiter cut-Inch scale and black -Inchsingle cut-Inch scale * Allows direct transfer of the work angle to the miter saw in 3 steps with no calculations * Features durable 1/4-Inch thick aluminum alloy and reflon O-ring for smooth, precise operation * 12-Inch version also available to cover * 7-Inch long; 1-1/2-Pound; 1-year warranty * Ideal for carpenters, plumbers and all building trades * Saves time and reduces waste * Scale shows angle for a miter joint and single cut * Takes error-prone calculations out of miter cuts * Upside down or backwards, the reading is always correct