Ko-Ken 3/8" Drive Flare Nut Socket 17mm - KO3300FN-17

Ko-Ken is a Japanese precision tool brand supplying professional-grade sockets, socket sets, ratchets, and hand tools to automotive, engineering, aerospace, and industrial operations across Australia.

The Ko-Ken Flare Nut Socket is a precision Ko-Ken tool manufactured to professional grade for reliable performance in automotive, engineering, and industrial maintenance applications.

Where this product is used

Ko-Ken flare nut sockets grip hexagonal fittings on brake lines, hydraulic tubes, and fuel lines with a split socket profile that prevents rounding of soft fittings during tightening and removal.

• Brake line, fuel line, and hydraulic tube fitting removal and installation without rounding
• Maintenance of soft material fittings on automotive and industrial hydraulic systems
• Fitting tightening where open-ended spanners have insufficient access or grip

Key specifications

Refer to the product title and description for specification details, or contact AIMS Industrial for full technical information on the Ko-Ken Flare Nut Socket.

Selecting the right option

Select by drive size and across-flats fitting size in mm. Flare nut sockets are designed for hydraulic and fuel fittings — they must be used instead of open-ended spanners where fitting rounding is a concern. Confirm the fitting is hex — flare nut sockets do not suit AF or non-hex fittings.