Stanley J000TL Proto 25 Blade Long Feeler Gauge Set 1/2-inch x 12-inch blades in steel holder. Sizes: .0015-inch, .002-inch, .003-inch, .004-inch, .005-inch, .006-inch, .007-inch, .008-inch, .009-inch, .010-inch, .011-inch, .012-inch, .013-inch, .014-inch, .015-inch, .016-inch, .017-inch, .018-inch, .019-inch, .020-inch, .021-inch, .025-inch, .027-inch, .030-inch, .040-inch. Blades etched with both decimal size and metric equivalent. 0.72-lbs Weight.