Socket wrench Proline 1/2" 21 mm model 9033319

Proline 1/2" 21 mm impact hex socket (model 9033319) is a single-size hand tool designed to turn nuts and bolts with a 21 mm head. It fits 1/2" square drive accessories and is intended for use with pneumatic and impact devices in demanding working conditions. Manufactured from chrome-molybdenum steel (CrMo) for extended service life and improved mechanical properties compared with standard tool steels.

Advantages

The chrome-molybdenum construction provides higher tensile strength and increased yield limit, resulting in longer durability under heavy and variable loads. The socket features PRO-DRIVE rounded profiles in the blunt corners between the contact faces to reduce concentrated point loads on the internal edges and improve fastener engagement. The 1/2" square recess is compatible with most locking mechanisms used on impact accessories.

Suitable for

• Automotive maintenance and repair
• Mechanical assemblies and disassembly
• Workshop and industrial pneumatic fastening tasks
• Field service operations with impact wrenches

Key specifications

• Brand: Proline
• Model: 9033319
• Drive size: 1/2" (square)
• Socket size: 21 mm
• Material: Chrome-molybdenum steel (CrMo)
• Compatibility: Compatible with most 1/2" locking mechanisms
• EAN: 4750959033319

How to use

Select the 21 mm Proline impact socket and attach it to a compatible 1/2" drive impact wrench or extension. Ensure the square drive locks in place with the tool's locking mechanism. Position the socket on the fastener head and operate the pneumatic or electric impact device according to the manufacturer's torque and safety instructions. After use, inspect the socket for wear or damage and store it in a tool set or protective case.

Usage recommendations

Use this Proline impact socket only with tools rated for impact duty. Avoid using damaged sockets; replace if cracks, excessive rounding, or deformation are visible. Follow the impact wrench manufacturer's guidelines for torque settings and use appropriate personal protective equipment when operating pneumatic or electric impact tools.