A set of 6 short series thread chasers to restore exhaust sensor port threads including; exhaust gas temperature (EGT), NOx (Nitrogen Oxide), oxygen (O2) and particulate sensors prior to fitting the new sensor. Manufactured from chrome molybdenum with a Titanium-Nitride coating for hardness, rust resistance and longevity. Supplied in an EVA foam tray, designed to fit roll cab drawers, keeping the sockets clean, tidy and ready for use.Applications include: Exhaust gas temperature (EGT), NOx (Nitrogen Oxide), oxygen (O2) & particulate sensors.Sizes: M12 x 1.25, M14 x 1.5, M22 x 1.5, M16 x 1.5, M18 x 1.5, M20 x 1.5 & M22 x 1.5.Manufactured from TiN (Titanium Nitride) coated chrome molybdenum. Presented in a EVA foam organiser tray (37 x 99 x 186mm).Use with axle grease for clean threads and to catch any removed metal in the flutes.Also available individually, please see Part Nos. 9003 (M12 x 1.25), 9004 (M14 x 1.5), 9005 (M16 x 1.5), 9006 (M18 x 1.5), 9007 (M20 x 1.5), 9008 (M22 x 1.5).