Socket 1/2" 20 mm GEKO T00143-20 — 12-point hand tool, chrome vanadium

GEKO T00143-20 is a 1/2" drive, 20 mm 12-point socket engineered for reliable engagement with 12-point fasteners. Manufactured from chrome vanadium steel, this hand tool is made to withstand repeated torque application and maintain dimensional stability. The socket fits standard 1/2" ratchets and extensions, providing a straightforward solution for tightening and loosening bolts and nuts in automotive, workshop and general maintenance environments.

Advantages

The 12-point geometry allows easier alignment with fasteners in confined spaces and multiple engagement angles compared with 6-point alternatives. Chrome vanadium construction delivers improved strength and wear resistance for prolonged service life. A standardized 1/2" drive interface ensures compatibility with common ratchets and extensions, enabling efficient torque transfer and secure hold on fasteners during operation.

Suitable for

• Automotive repair and maintenance
• Workshop and garage use
• Industrial maintenance and equipment servicing
• Assembly and disassembly of machinery with 12-point fasteners

Key specifications

• Drive size: 1/2 inch
• Socket size: 20 mm
• Point profile: 12-point
• Material: chrome vanadium steel
• Finish: corrosion-resistant chrome plating

How to use

Select the 20 mm 12-point socket and attach it securely to a compatible 1/2" ratchet or extension. Engage the socket with the fastener so the 12-point recess sits fully over the nut or bolt head. Apply steady torque with the ratchet, avoiding sudden impacts unless using impact-rated tools. For loosening, turn the ratchet in the opposite direction; for tightening, apply torque until the required fastness is achieved.

Usage recommendations

Inspect the socket before use for signs of wear or damage and replace if deformation or cracks appear. Use appropriate torque values for the specific fastener to prevent rounding or overstressing. Do not use non-impact rated sockets with impact wrenches; use extensions or adapters rated for the required application.