By the very nature of their purpose, feeler gauges need to be accurate, and accuracy only comes with high quality. Here we have three such sets to suit your needs and your pocket. All are marked in both 0.001 and 0.001mm. 3 Feeler gauges are available : - Feeler Gauge with 30 blades . It includes one brass blade to use for setting electronic ignition systems - Angled Feeler Gauge with 11 blades . Designed for use in hard to reach areas - setting points, tappets, etc. - Go-No-Go Feeler Gauge with 22 blades . It features ground tips providing a 0.002\" Go-No-Go facility for super accuracy. - Set of all 3 gauges (Save money with the Feeler Gauge Set including one of each)