All components of the KNECT™ Impact Pass Through and Deep-Well Flip Socket Set are compatible with the 90-tooth pass through ratchet, offering minimal arc swing for tight-space ratcheting. Each impact flip socket features two coaxial sockets in one. Also comes in a compact, modular storage system with a clear lid that is compatible with MODbox™ and stackable with other cases of similar design. Features: Multi-purpose adapter makes the sockets compatible with the Klein KNECT™ system for unlimited driving potential; Five deep well, color-coded, impact flip sockets, eight color-coded low profile sockets, and six adapters for maximum flexibility; Set includes a pass through ratchet, 1/4 x 5/16, 3/8 x 7/16, 1/2 x 9/16, 5/8 x 3/4, and 11/16 x 13/16 inch deep well sockets, and 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16-Inch low-profile sockets; Three smallest sockets (1/4-Inch to 9/16-Inch) are stackable on 650QSAL shaft to quickly change socket sizes and reduce the number of tools needed; Klein KNECT™ specialized square drive adapters compatible with Klein Tools Pass Through Socket Wrench (Cat. No. 65400) and any 3/8-Inch square drive ratchet; Small parts storage tray inside the case to secure loose fasteners, washers and extra bits; Compact, modular storage system with a clear lid is compatible with MODbox™ and stackable with other cases of its similar design; All components are compatible with the 90-tooth pass through ratchet with minimal arc swing for ratcheting in tight spaces; Compatible with MODbox™; Flip Feature, Nested Adapter - Warnings: Always wear approved eye protection.