The ANVALEE A308 Offset Valve Tappet Gauge Set is a high-quality tool designed for measuring the size of valve tappet offsets. Made of durable stainless steel, this 11-blade feeler gauge kit includes sizes ranging from 0.004" to 0.014", providing precise measurements for automotive maintenance and repair. Perfect for professionals and enthusiasts alike, this set is a valuable addition to any toolbox, offering convenience and accuracy in one compact package.