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The HKS x TONE AN Fitting Wrench Set is a professional-grade tool kit developed through a collaboration between HKS and TONE Co., Ltd., combining motorsports expertise with precision tool manufacturing. Designed for tuning shops and enthusiasts alike, this set provides the correct tools for safely installing and maintaining AN fittings used in oil, fuel, and coolant systems.
Each wrench is manufactured from durable steel and features an ultra-thin profile, allowing access to tight spaces commonly found in modern engine bays. The slim design helps prevent damage to anodized fittings while ensuring a secure grip during assembly and service. This makes the set especially useful when working on high-performance engines with limited clearance.
The kit includes a comprehensive range of commonly used AN sizes and comes housed in a dedicated case for organization and portability. Whether used for routine maintenance or full custom builds, this wrench set is a reliable addition to any performance-focused tool collection.
Features:
Developed jointly by HKS and TONE Co., Ltd.
Compatible with AN fittings for oil, fuel, and coolant lines
Steel construction for strength and durability
Thin-profile design for use in tight engine bay spaces
Helps prevent damage to fittings during installation and removal
Includes dedicated storage case
Included Sizes:
AN3
AN4
AN6
AN8
AN10
AN12
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
