Easy storageEach Feeler gauge set has 32 blades thickness. Foldable storage for easy carrying and prevent damage to a single blade. The cutter includes a blade slot for easy blade removal. Mufti-functionFeeler gauge set used for measure the thickness of tappet clearances, piston ring gaps ,spark plugs gaps, bearing clearances and other hard to reach places. Easy to use and convenientMetric feeler gauges made of high quality stainless steel, each measuring feeler gauge has 32 blades thickness; Foldable, easy and convenient to take and store. Easily measure gap widths with the ABN Valve Offset Feeler Gauge. It is great for use on guitars, engines, and so much more. Built to lastFeeler gauges metric constructed from hardened tempered steel with a lube oil coating, which can prevent pitting and corrosion, and is durable. Each blade has sizes laser etched for easy identification; Blades are bound within a blade protector to prevent loss of individual blades. Easy to identify Each blade of the steel feeler gauge is laser etched with metric and imperial, measuring gap: 0.0015 inches/ 0.04 mm to 0.035 inches/ 0.88 mm.