Socket 1/2" 20 mm GEKO T00142-20 — hexagonal drive, single 20 mm size

GEKO T00142-20 is a 20 mm hexagonal socket with a 1/2" square drive designed for use with standard 1/2" ratchets and handles. Manufactured to fit hex fasteners, this single-size socket is intended for turning bolts and nuts in automotive, mechanical and general maintenance applications. Its 20 mm internal width provides a precise fit for compatible fasteners, and the 1/2" drive enables use with widely available tools for medium to heavy torque operations.

Advantages

The GEKO 20 mm socket offers a straightforward, durable solution for fastening tasks requiring a reliable hex interface. Its single-size design minimizes play on the fastener and helps prevent rounding when correctly used. Compatibility with 1/2" drive tools ensures easy integration into existing tool sets, while the robust construction supports repeated use in workshop and field environments.

Suitable for

• Automotive repair and servicing where 20 mm fasteners are common
• Mechanical assembly and disassembly of machinery components
• Maintenance and repair tasks in workshops and industrial settings
• Home garage use for tightening and loosening medium to large bolts

Key specifications

• Drive size: 1/2" square drive (compatible with 1/2" ratchets and handles)
• Internal profile: hexagonal (6-point)
• Socket size: 20 mm internal width across flats
• Intended use: turning bolts and nuts with hex heads
• Form: single, fixed-length socket (one-size)

How to use

Select the 20 mm GEKO socket and fit it onto a compatible 1/2" drive ratchet, breaker bar or handle. Ensure the socket fully engages the hex fastener across the flats before applying torque. Apply steady, controlled force and avoid sudden impacts that exceed the tool's intended rating. When removing stubborn fasteners, use gradual increasing torque and confirm there is no damage to the fastener head before continuing.

Usage recommendations

Use the socket with tools rated for 1/2" drives and avoid using with impact tools unless the socket is specifically marked as impact-rated. Keep the socket clean and inspect for rounded edges or cracks before use. Store in a dry toolbox to prevent corrosion and prolong service life.