These gauges are used in automotive, aviation, diesel and farm equipment manufacture and service and also in jig, fixture, gauge and experimental work. Especially useful in adjusting tappets, spark plugs, distributor points, checking bearing clearances and gear play, fitting pistons, rings and pins and gauging narrow slots. Made in a wide range of types and sizes, each having from 6 up to 26 leaves ranging in thickness, straight or tapered.