Socket 1/2" - 17 mm Hex (Allen) Unior 603427

1/2" drive 17 mm hex (Allen) socket by Unior, model 603427, is a hand tool accessory designed to engage internal hex fasteners with a 17 mm bore. It connects to standard 1/2" ratchets, breaker bars or torque wrenches to deliver controlled turning force to assembly, maintenance and repair tasks in workshops and home toolkits. The socket's geometry ensures a positive fit with hex (Allen) heads used on machinery, automotive components and industrial equipment.

Advantages

The Unior 1/2" 17 mm hex socket offers precise engagement with internal hex fasteners, reducing the risk of rounding or slipping. Its 1/2" drive interface provides compatibility with common professional ratchets and torque tools, enabling accurate torque application where required. The solid construction and machined hex profile ensure even load distribution across fastener faces for reliable performance during repeated use.

Suitable for

• Removing and tightening 17 mm internal hex (Allen) bolts and screws
• Automotive servicing where hex socket fasteners are present
• Mechanical assembly and maintenance in workshops and industrial settings
• Home repairs and DIY projects requiring a 1/2" drive hex tool

Key specifications

• Drive size: 1/2" (12.7 mm)
• Internal hex size: 17 mm
• Type: Internal hex (Allen) socket
• Connection: Square drive for ratchets, breaker bars and torque wrenches
• Usage: Designed for mechanical fastening tasks involving hex internal fasteners

How to use

Select a compatible 1/2" drive ratchet, breaker bar or torque wrench and attach the socket securely to the drive square. Align the 17 mm hex socket with the internal hex fastener and apply steady turning force while maintaining axial alignment to avoid cam-out. For torque-critical fastenings, use a calibrated torque wrench and follow the fastener manufacturer's specified torque values. Inspect the socket and fastener before use to ensure clean contact surfaces and correct seating.

Usage recommendations

Use the socket with tools rated for the required torque and avoid impact use unless the socket is specifically designated for impact applications. Keep the contact surfaces free of debris and replace the socket if excessive wear or deformation is observed to maintain safe and effective operation.