1/4″ Drive Impact Socket Set, 55 Piece, SAE/Metric, Deep/Shallow, Cr-V Steel, 6 Point, (5/32″-9/16″, 4-15mm) Sockets with Ratchet Handle, Extension bar, Adapter and Universal Joint 【1/4″ Socket Wrench Set】: SAE: Deep: 5/32″,3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 7/16″, 1/2″, 9/16″. Shallow: 5/32″,3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 7/16″, 1/2″, 9/16″. Metric: Deep: 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm. Shallow: 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm. Accessory: 3″, 6″ Extension Bar, 1/4″ Universal Joint, 3/8″ to 1/4″ Adapter. 1/4″ 72-Tooth Ratchet Handle. 【Material】The drive impact socket set are made of high quality chrome vanadium steel alloy (50BV30), with black phosphate finish, which enhances corrosion resistance, is durable and reliable, ensures long-lasting performance. 【Advantage】: Equipped with 1/4″ 72-tooth ratchet handle; extension bar and universal joint, the rotary handle helps you turn fasteners for better access and work, universal joint with a 360-degree range of motion, extension bar can reach deeper fasteners, quickly complete difficult tasks. 【6-Point & Size Clearly】High torque embedded hexagonal nuts can grip stubborn fasteners, prevent bolt detachment, maintain integrity without deformation, and protecting the completion of the work. Each metric standard socket in this set is permanently laser-etched with easy-to-read size markings. This feature allows for quick and effortless identification, even in low-light conditions, ensuring efficient work. 【Easy to Carry】The sockets tools comes in a sturdy, high-impact storage carrying case, keeping your sockets organized and easily accessible, convenient storage and use Package Include SAE: Deep: 5/32″,3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 7/16″, 1/2″, 9/16″. Shallow: 5/32″,3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 7/16″, 1/2″, 9/16″. Metric: Deep: 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm. Shallow: 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm. 3″, 6″ Extension bars, 1/4″ Universal Joint, 3/8″ to 1/4″ adapter, 1/4″ 72th-Tooth Ratchet Handle. High-Torque, 6-Point 6 point design are easier to embed, opening grips flat sides of fasteners, not corners, preventing round-off. Chrome Vanadium Steel The impact socket set are made of high quality chrome vanadium steel, with black phosphate finish, strong and durable; not easy to rust or corrode.