The CTA Manufacturing Corp. 12-pc. Deep Metric Socket Set, No. 1099, contains 120mm-long metric sockets, providing technicians access to recessed areas with long bolts, as found on some bumpers, rear lamps, glow plugs, and door hinge fittings. All sockets connect using a 3/8" square drive. Sizes included: 1708 - 8mm, 1709 - 9mm, 1710 - 10mm, 1711 - 11mm, 1712 - 12mm, 1713 - 13mm, 1714 - 14mm, 1715 - 15mm, 1716 - 16mm, 1717 - 17mm, and 1718 - 18mm.