Chase Bays Billet Aluminum AN Wrench Set - 12 size


Chase Bays


Ships Direct from Manufacturer


If you've ever used AN wrenches you know one specified size does not fit all. In the AN fitting world there is "B Nut" and "S Nut" sizing. A -6AN wrench can fit a -6AN Hose End perfectly, but another brand or another run of -6AN fittings won't work that same wrench. That would be a B Nut vs. S Nut scenario. Our wrench set includes ALL in between sizing so this is the last purchase you will make. Instead of trying to call them with a S or B suffix, we call them 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12. Some of these sizes don't exist in the AN fitting world (IE: 2, 7, 9, 11) but it made the most sense for the in between sizes.

We have used our 12 years of AN fitting experience to manufacture the most precise and most inclusive set available. This is the same set we use every day to assembled hundreds of AN fittings with no scratches or marks. Don't waste your time with other kits that will only fit half of your fittings, and definitely don't get the "adjustable" AN wrenches. They do not work well. 

These wrenches are 3/8" inch | 9.6mm thick aerospace 6061 billet aluminum with a UV proof black hard anodized finish. We've been using the same prototype set for 3 years here in house on aluminum fittings. You'd be hard pressed to find a company that assembles as many different AN hoses as we do. 

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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