Imperial feeler stock strips are a cost effective way to check spacing gaps of machinery during set-up and repair. Made from tempered steel for durability each piece marked with thickness and with convenient 3/16" (5mm) hole for hanging. Features and Benefits • Tempered steel construction for durability • 12" long, 1/2" wide feeler stock strips with rounded ends • Each piece marked with thickness and with 3/16" hanging hole Typical Applications • Engineering • Manufacturing