Socket 18 mm 3/8" deep, Proxxon PR23548

Proxxon deep socket 18 mm with 3/8" drive is a single-piece tool designed to reach recessed nuts and bolts or fasteners on long studs. Built for use with hand ratchets and torque wrenches that accept a 3/8" square drive, this deep socket provides the extra reach required in automotive, maintenance and workshop environments. The design emphasizes precise fitment to hex fasteners and reliable torque transfer for hand-driven operations.

Advantages

This 18 mm deep socket offers extended reach compared with standard sockets, enabling access to fasteners set back from surfaces or located on protruding studs. Manufactured as a single piece, it reduces the risk of splitting or separation under normal hand-torque conditions and provides consistent contact with fastener faces for reduced rounding. The 3/8" square drive interface ensures compatibility with a wide range of ratchets and torque tools commonly used in garages and workshops.

Suitable for

• Automotive repair and maintenance where nuts are recessed or on long studs
• General workshop fastening and assembly tasks requiring extended reach
• Servicing machinery and equipment with fasteners in confined or deep locations

Key specifications

• Size: 18 mm socket opening for hex fasteners
• Drive: 3/8" square drive for hand ratchets and torque wrenches
• Type: deep socket (extended depth compared to standard sockets)
• Construction: single-piece design for durability under hand-torque
• Intended use: hand-driven tightening and loosening of nuts and bolts

How to use

Select the 18 mm deep socket and attach it to a compatible 3/8" drive ratchet or torque wrench. Place the socket fully onto the hex fastener, ensuring full seating to minimize the risk of rounding. Apply steady hand torque or the specified torque setting on a torque wrench for tightening; for loosening, apply controlled reversing force. When working on long studs, slide the socket over the stud until it engages the nut. Inspect the socket and drive interface periodically for wear before continued use.

Usage recommendations

Use with hand-operated ratchets and torque wrenches sized for 3/8" drives; avoid impact tools unless the socket is explicitly rated for impact use. Keep the socket clean and free of debris to ensure correct seating on fasteners and periodically check for signs of wear or distortion. Store in a dry place to prevent corrosion and maintain torque accuracy when used with torque-limiting tools.