The Pacesetter® 10-Inch Contour Gauge is used to easily transfer a mirror image of irregular shapes to tiles for an ideal fit. Traces shapes for precise marking. 4-in deep fingers will measure profiles up to 1-1/4-in. Also ideal for woodworking, linoleum and ceramic tile installation or any job where contour duplication is essential. Contour gauge is 10-in by 4-in with an maximum measuring depth 1-1/4". 17 pins/inch.