The Snap-on FXK6 3/8″ Drive 6″ Knurled Extension is a high-quality, single chrome-plated extension piece designed for use with 3/8 inch drive sockets. Made in the United States by Snap-on, a trusted brand in the industry, this extension is an essential garage tool for quickening and simplifying the process of accessing tight spaces with your sockets. Perfect for mechanics and DIY enthusiasts alike, this knurled extension provides added length and versatility for a wide range of automotive maintenance tasks. Good used condition