General description Sealey SX1821 4-in-1 Impact Socket Set features a double-ended impact socket that can replace four different socket sizes. This set includes a 75mm 1/2" square drive impact extension bar, making it versatile for various applications. Technical specifications 4-in-1 double-ended impact socket sizes: 17mm, 19mm, 21mm, 22mm Drive size: 1/2" square Extension bar length: 75mm Model No.: SX1821 EAN: 5054630189166 Compatibility and accessories Compatible with impact wrench Compatible with air ratchet Compatible with breaker bar Compatible with torque wrench Usage This impact socket set is ideal for professional use, providing maximum strength and durability for heavy-duty tasks. Other information