Unior 188.7/2 1/4" 3/8" Socket Adaptor

The Unior 188.7/2 adaptor connects socket tools with 1/4" and 3/8" drives. It is useful in the workshop or at home when your socket and ratchet have different drive sizes.

• Use tools with different drive sizes together, from 1/4" to 3/8"
• Premium Flex chrome-vanadium steel, designed to withstand workshop use
• Forged and fully hardened for a tool that stays strong over time
• Chrome-plated to ISO 1456:2009, protecting the steel and making it easy to clean
• Made to ISO 3316 for a standard fit with sockets

Technical specifications

• Item: Unior adaptor 1/4" - 3/8" item 188.7/2 (607976)
• Material: Premium Flex chrome-vanadium steel
• Finish: Chrome-plated, to ISO 1456:2009
• Drives: 1/4" - 3/8"
• Standard: ISO 3316
• Manufacturing process: Forged and fully hardened
• Intended use: Socket wrench adaptor 1/4" - 3/8"

Unior was founded in 1919 in Zreče, in present-day Slovenia, where it is still based. For bicycle care, it makes tools, repair stands and wheel equipment. Its name, adopted in the 1970s, comes from the expression “universal tools” and reflects its roots in metalworking.