Socket Wrench c.k tools T4690M 1/2" drive 21 mm

The c.k tools Socket Wrench T4690M 1/2" drive 21 mm is a heavy-duty hand tool engineered for tightening and loosening 21 mm nuts and bolts. It provides a standard 1/2" square drive interface compatible with ratchets, torque wrenches and extensions used in automotive, mechanical and workshop environments. The socket's size and drive format deliver a direct fit for 21 mm fasteners while allowing use with common drive accessories for greater reach and applied torque.

Advantages

The socket is built to withstand repeated use under workshop conditions, offering consistent fit and engagement with 21 mm fasteners. Its 1/2" drive compatibility ensures broad interchangeability with standard ratchets and torque tools. The design minimizes rounding of fastener edges and supports efficient transfer of turning force. Materials and finish provide resistance to corrosion and wear in regular maintenance and repair tasks.

Suitable for

• Automotive repairs and maintenance
• Mechanical assembly and disassembly
• General workshop and industrial maintenance
• Use with 1/2" drive ratchets, torque wrenches and extensions

Key specifications

• Drive size: 1/2 inch (square)
• Socket size: 21 mm
• Intended fastener type: hexagon nuts and bolts
• Typical material: chrome-plated alloy steel (workshop-grade)
• Finish: corrosion-resistant plating
• Connection: standard detent groove/socket retention compatible with 1/2" drive accessories

How to use

Select the 21 mm socket when the nut or bolt head matches the socket across flats. Attach the socket securely to a compatible 1/2" drive ratchet, torque wrench or extension until the drive retains in the detent. Position the socket squarely on the fastener and apply torque in the required direction, keeping the tool aligned to avoid slipping. When using a torque wrench, set the desired torque value and operate according to the torque wrench manufacturer’s instructions. After use, clean any grit from the socket and store it in a dedicated tray or holder to maintain condition.

Usage recommendations

Use the socket within the rated capacity of your drive tool; avoid impact use unless the socket is specified for impact applications. Match socket size precisely to the fastener to reduce rounding and wear. For high-torque or safety-critical fastenings, use a calibrated torque wrench and follow manufacturer torque settings.