Socket bit 3/8" hex 15 mm long, Proxxon PR23544

Proxxon PR23544 is a long 3/8" hex socket bit with a 15 mm internal width, designed to provide extended reach and a precise fit for hex-head bolts and nuts. Manufactured by Proxxon, this socket bit is intended for use with manual drivers or compatible 3/8" drive power tools and offers improved access in recessed or hard-to-reach fastener locations. The longer profile helps reach fasteners behind obstacles while maintaining stable engagement with the hex profile.

Advantages

The long 15 mm hex socket bit delivers greater access to recessed or deep-set fasteners compared with standard-length sockets. Its precisely machined internal hex profile reduces the risk of rounding fastener corners, ensuring reliable torque transfer. The socket is suitable for both hand and compatible drive tools, providing versatility across workshop and field applications. Durable materials and finish contribute to wear resistance and extended service life under normal workshop conditions.

Suitable for

• Accessing recessed hex-head bolts and nuts in automotive repair
• General maintenance and assembly tasks in workshops
• Use with hand ratchets or compatible 3/8" drive power tools for tightening and loosening
• Situations requiring extra reach to clear obstructions or reach into confined spaces

Key specifications

• Socket type: hex (internal hexagon)
• Drive size compatibility: 3/8" drive
• Internal width across flats: 15 mm
• Design: long/extended profile for improved access
• Intended use: fastening and loosening hex-head bolts and nuts

How to use

Select a compatible 3/8" drive ratchet or power tool and attach the long 15 mm hex socket bit securely to the drive. Align the socket with the hex-head fastener and apply steady torque, ensuring the socket fully engages the fastener before applying force. When using a power tool, use controlled speed and torque settings appropriate for the fastener and workpiece to avoid damage. After use, clean the socket from debris and inspect for wear before storing in a tool case or on a socket rail.

Usage recommendations

Use this long hex socket bit where additional reach is required and avoid applying excessive torque beyond the capacity of the fastener or driver. For optimal life, store in a dry environment and avoid impact or prying uses that can deform the hex profile.