CURV-O-MARK No.14 CONTOUR CIRCLE ELLIPSE PROTRACTOR
Perfect circles, ellipses or oblong circles can be made on any round or flat surface. Features a protractor with sliding rods and lever to lock in the specified layout. Has magnet in the base and for non-magnetic surfaces a web strap is also provided. Can also be used to layout lateral intersections of different diameter pipes, or to project circles from 1½ to 18 inch dia on flat surfaces intersecting from 0 to 70° from vertical. Equipped with soapstone crayon.
