Curv-O-Mark® pipe and beam markers help pipe fitters and welders create accurate layout marks for cutting, fit-up, and fabrication. Designed to simplify pipe layout, they help reduce calculation errors, material waste, and rework while improving marking accuracy. Helps create accurate pipe layout marks for cutting, fit-up, and fabrication work Reduces complex calculations and trial-and-error layout to help minimize material waste and rework Dual-scale protractor is calibrated in degrees and rise-inches-per-foot for accurate angle and pipe layout calculations (models 14771 and 14773) X-frame design and triple-jointed marking arm provide precise, repeatable pipe marking performance (models 14771 and 14773) Ideal for pipe fitters and welders performing pipe layout, fabrication, welding preparation, and repair work