Useful for checking angles on welded areasBlade can be on either side of the stock for symmetrical workCross brace prevents any accidental change in angleLight aluminum materialThick blade can be used as a guide for a circular sawAngle scale is 1°pitch for 20°- 120°, and gradient scale is 1/10 pitch for 0 - 10Screw stopper easy to tighten and loosenMeasured angles can be written on a specially installed tape with a pen or pencil. (An eraser works well on this if a pencil is used.)For scribing or copying an angle such as a roof's gradientAfter measuring the gradient, it can be used as a guide for a circular sawModel with graduation can be used to measure length as well±0.35 mmBody: Aluminum Screw: Polypropylene resin