a pen-sized selection of various thickness strips of high quality metal, used to slide into the gap
A tool containing thin strips of metal of varying thicknesses. Used mainly by judges to determine measurements for the closest shoe and/or for determining if shoes are ringers.
A device with varying thicknesses for measuring the distance, or gap, between two surfaces. Feeler gauges are most often used to measure the gap on a spark plug or the gap in ignition points.
Also called a thickness gauge, this series of precision thickness, metal blades is used for measuring small gaps, with each blade being marked with the thickness in thousandths of an inch.
A blade, usually metal, of precisely predetermined thickness, used to measure the clearance between two pads.
A feeler gauge is a simple tool used to measure gap-widths. Feeler gauges are mostly used in engineering to measuring the clearance between two parts.