SK Hand Tools 82164 Long Hex Bit Socket 4mm with 1/4-Inch Shank

The SK Hand Tools 82164 is a long hex bit socket featuring a 4mm hex tip and a 1/4-inch shank, designed for precise fastener driving in tight or deep-access locations. Built to SK's professional-grade standards, this replacement bit is ideal for automotive, mechanical, and industrial applications where a standard-length bit falls short.

Key Features:

• 4mm hex tip for metric fastener applications
• 1/4-inch hex shank compatible with ratchets, T-handles, and spinner handles
• Long series design provides extended reach in recessed or deep fastener locations
• Manufactured from high-strength S2 alloy steel for durability and resistance to wear in high-torque applications
• SuperKrome® finish delivers maximum corrosion and abrasion resistance for long service life
• C-clip retention groove in the hex end ensures a secure bit hold during use
• Through-hole design allows for easy bit replacement — simply pop the old bit out and insert a new one
• Made in the USA

The SK 82164 is backed by SK Tools' limited lifetime warranty, reflecting their commitment to quality for professional tradespeople and serious enthusiasts alike.