Socket bit for hex drive Jonnesway S09H4312 1/2" drive H12 x 100 mm long

Jonnesway S09H4312 is a long 1/2" drive socket bit engineered for H12 (12 mm hex) fasteners. With a 100 mm overall length, this socket bit provides extended reach to access recessed or hard-to-reach hex screws and bolts. It is designed to connect to standard 1/2" drive ratchets, torque wrenches and extension bars, making it suitable for tasks in automotive repair, machinery maintenance and general workshop work.

Advantages

The elongated 100 mm profile allows safer engagement with fasteners located in deep or confined spaces while maintaining good control and alignment. Manufactured to fit a 12 mm hex interface precisely, the bit reduces the risk of rounding fastener corners. Compatibility with 1/2" drive toolholders ensures easy integration into common workshop toolsets and with torque measuring tools when controlled tightening is required.

Suitable for

• Accessing recessed hex bolts and screws in engines and gearboxes
• Maintenance and assembly of industrial machinery with deep-set fasteners
• Workshop repair tasks that require a 12 mm hex socket and extended reach

Key specifications

• Drive size: 1/2" (12.7 mm)
• Hex size: H12 (12 mm)
• Overall length: 100 mm
• Tool interface: long socket bit suitable for use with ratchets, torque wrenches and extensions
• Intended application: hex-profile fasteners

How to use

Attach the socket bit securely to a compatible 1/2" drive ratchet, torque wrench or extension bar. Engage the 12 mm hex onto the fastener until fully seated to minimize slippage. Apply controlled torque in accordance with the fastener's specifications; when precise torque is required, use a torque wrench and follow the manufacturer's torque settings. Withdraw the bit straight to avoid damaging the fastener head.

Usage recommendations

Use the tool with appropriately rated 1/2" drive handles and extensions. Inspect the socket bit and fastener for wear before applying high torque. Store in a dry tool chest to prevent corrosion and maintain precise fit and function.