HKS 15999-RK015 x TONE Steel AN Fitting Wrench Set 6-Piece

The HKS x TONE Fitting Wrench Set is a premium tool kit developed through a collaboration between HKS and Japanese precision tool manufacturer TONE. This professional-grade wrench set is specifically designed for working with AN fittings commonly found on performance and tuning applications, including oil lines, fuel systems, coolant hoses, and hydraulic connections.

What's Included:

• AN3 Wrench (1/2") - Ideal for brake lines, clutch lines, and NOS systems
• AN4 Wrench (9/16") - Perfect for turbo oil lines
• AN6 Wrench (11/16") - Designed for fuel lines
• AN8 Wrench (7/8") - Used for oil coolers, power steering, and fuel systems
• AN10 Wrench (1") - Suited for engine coolant lines
• AN12 Wrench (1-1/4") - For larger engine coolant applications
• Protective storage case

Key Features:

• Constructed from durable steel for long-lasting performance
• Ultra-thin profile design allows access in tight, cramped engine bays typical of modified vehicles
• Compatible with major AN fitting brands including Earls, Aeroquip, and HKS
• Covers the most common AN fitting sizes for oil, fuel, water, and hydraulic lines
• Developed with HKS engineering expertise for automotive tuning applications

This wrench set combines TONE's precision manufacturing quality with HKS's deep understanding of performance vehicle requirements, making it an essential tool for professionals and enthusiasts working on turbocharged engines, custom plumbing, and high-performance fuel systems.