Reach Nuts on Long Studs with a True Pass-Through Design This 17-piece metric set uses open-ended sockets and a hollow reversing ratchet, allowing long bolts and threaded rods to travel through the center during size-matched strut-top, suspension, and long-bolt work. Designed for Manual Fastening Open-Ended Sockets for Long Stud Access The hollow sockets allow long bolts and threaded rods to pass through the socket and ratchet center, helping you reach size-matched nuts that ordinary closed sockets cannot access. Pass-Through Center 13 Metric Sockets 12-Point Profile 72-Tooth Reversing Ratchet The reversing ratchet requires 5 degrees of swing, supporting manual turning where available movement is limited. Its head has a fully open center for pass-through use. 72-Tooth Mechanism 5-Degree Swing Direction Switch Adapters for Standard Sockets The included 3/8-inch and 1/2-inch quick-release adapters fit into the hollow ratchet so it can accept standard sockets. Standard sockets are not included. 3/8-Inch Adapter 1/2-Inch Adapter Quick Release Multi Ways Manual Drive Options for Limited Headroom Use the pass-through ratchet, or turn a socket by its 19 mm external hex with a standard 19 mm box or open-end wrench when overhead clearance is restricted. The wrench is not included. 19 mm External Hex Size-Marked Case Slots Specifications Review the metric coverage and included components before ordering. Metric pass-through ratchet and socket set 17 pieces 13 metric sockets 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, and 24 mm 13 metric sockets, reversing ratchet, extension bar, 3/8-inch adapter, 1/2-inch adapter, and molded case 72-tooth reversing ratchet with 5-degree swing 12-point pass-through socket 19 mm Chrome vanadium steel Manual fastening only Frequently Asked Questions Which socket sizes are included? The set includes 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, and 24 mm sockets. It is a metric-only set, and 20 mm and 23 mm sockets are not included. Can this set be used with standard sockets? Yes. The included 3/8-inch and 1/2-inch quick-release adapters allow the hollow ratchet to accept standard sockets. Standard sockets are not included. Can these tools be used with powered equipment? No. The chrome vanadium steel tools are specified for manual fastening. Do not use powered tools, cheater bars, or the ratchet to break seized or rust-frozen fasteners.