CTA Tools 1099 11 Pc. Deep Metric Socket Set are 120mm long sockets for extra-deep reach. Included sizes are 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 & 18mm. Provides access to recessed areas with extra long bolts, as found on some bumpers, rear lamps, glow plugs and door hinge fittings. All sockets are used with a 3/8" square drive. Example applications are Diesel glow plugs, Benz C-Class (W204) rear bumper covers, Twin-turbo BMW valve cover bolts (N54), Ford 7.3L glow plugs & BMW N54 valve cover gaskets-10mm deep. CTA part numbers are 1708 - 8mm, 1709 - 9mm, 1710 - 10mm, 1711 - 11mm, 1712 - 12mm, 1713 - 13mm, 1714 - 14mm, 1715 - 15mm, 1716 - 16mm, 1717 - 17mm & 1718 - 18mm. Whether tuning up your '68 Corvette or changing the oil on a John Deere tractor, CTA can supply you with the tools needed to do the job. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.