Socket Bit 1/2" 17 mm long, Hartsson 17B317Z

Long 1/2" hex socket bit, 17 mm, Hartsson model 17B317Z is a specialist hand tool designed for use with 1/2-inch drive ratchets and handles. The extended length provides improved access to recessed fasteners and allows greater leverage when tightening or loosening 17 mm bolts and nuts. Construction from hardened tool steel and a hex drive profile make this socket bit suitable for repeated workshop tasks in automotive, mechanical and general maintenance environments.

Advantages

The long 17 mm socket bit delivers extended reach without sacrificing torsional strength, enabling work in deep or confined spaces. Its 1/2" drive compatibility ensures secure fitment to common ratchets and handles, while the hex profile reduces the chance of rounding fastener corners. The tool’s hardened construction and precise machining offer consistent fit and durability under regular use.

Suitable for

• Accessing recessed 17 mm bolts and nuts in engines and machinery
• Automotive repair and maintenance tasks requiring extended reach
• Mechanical and workshop assembly or disassembly work
• General maintenance where a standard 17 mm size and 1/2" drive are used

Key specifications

• Drive size: 1/2 inch
• Socket size: 17 mm (hex)
• Length: long/extended design for reach to recessed fasteners
• Material: hardened tool steel (engineered for durability)
• Profile: 6-point hex for secure engagement with fasteners

How to use

Select a compatible 1/2" drive ratchet or handle and push the socket bit onto the square drive until it clicks or seats firmly. Position the hex socket over the 17 mm fastener, ensure full engagement with the fastener head, then apply steady torque to tighten or loosen. For deep or hard-to-reach fasteners, use the extended length to reach past obstructions while maintaining a straight line of force. Inspect the socket and fastener engagement regularly to avoid slipping or rounding.

Usage recommendations

Use appropriate personal protective equipment and select the correct torque settings for the fastener material. Do not use the socket bit with impact drivers unless it is specifically rated for impact use; prolonged misuse can reduce tool life. Store the socket bit in a dry tool organizer to prevent corrosion and maintain precise fit.