Socket set Stanley FMMT17240-0 1/2 inch drive Imperial 95 mm

The STANLEY FATMAX 1/2 in. Drive 21mm 6 pt. Socket (FMMT17240-0) is a 1/2 inch drive, 21 mm six-point socket forged from chrome vanadium steel with a satin chrome finish. At 95 mm length and approximately 79 g, it balances accessibility in narrow spaces with strength for automotive and mechanical fastener work. The socket features a Maxi-Drive™ profile for increased contact with nuts and bolts and clearly marked dimensions for quick identification.

Advantages

This 21 mm 6-point socket offers enhanced grip and reduced rounding of fasteners thanks to the Maxi-Drive™ profile. The chrome vanadium construction and satin chrome finish provide corrosion resistance and durability. The necked-down design increases reach into tight or recessed areas while the visible size marking simplifies socket selection during tasks.

Suitable for

• Automotive repair and maintenance
• Mechanical assembly and disassembly
• Tight or recessed fasteners where extended reach is needed
• Work requiring a 1/2 inch drive and 21 mm socket

Key specifications

• Brand: STANLEY
• Model / MPN: FMMT17240-0
• Drive size: 1/2 in.
• Socket size: 21 mm (6 point)
• Length: 95 mm
• Material: Chrome vanadium steel
• Finish: Satin chrome
• Weight: ~79 g
• EAN: 3253560172404

How to use

Select the 21 mm socket for compatible nuts or bolts, attach it to a 1/2 inch drive ratchet or breaker bar, and position the socket fully over the fastener before applying torque. Use steady, controlled force to avoid slippage; for stubborn fasteners, apply penetrating lubricant and allow time to work before attempting removal. After use, clean any debris or grease and store the socket in a rack or case to protect the finish.

Usage recommendations

Use the STANLEY FATMAX 21 mm 6 pt. socket with the correct 1/2 in. drive tools, avoid exceeding recommended torque for the fastener or tool, and inspect the socket for wear or damage before use to ensure safe operation.