7075 is Comparable to steel unlike 6061 that wears out and gets rounded corners. Absolutely the Strongest and Most Practical AN Wrench’s Available!UPR’s Thin Radiator AN Wrench covers all your common AN sizes. Made from .275″ thick Billet Aluminum and machined to allow full seating of aluminum AN fittings to prevent galling or damage to your expensive AN fittings. Black anodized and laser engraved make it easy to read and identify sizes. Perfect for keeping on you or in your car to fix last minute leaks. A must for any racer. Designed specifically for AN fittings and working in open and even the tightest spaces. These wrenches take up no space and can be taken anywhere and will last a lifetime from the 7075 Aircraft Aluminum Construction with Black Anodized Finish.» Wrench 16AN and 20AN – 16S and 20B – (46.54mm and37.1mm ) Product Features:» Black Anodized Finish» Engraved with easy to identify sizes» Fits Large AN fittings 16an and 20an Sizes» CNC Machined from 7mm/.275″ Thick Billet Aluminum Normal 0 false false false EN-US X-NONE X-NONE Returns are only accepted within 30 days and only if a Return Merchandise Authorization (RMA) has been issued. All returns MUST be brand new and in their original, unopened packaging. (Item returns may be subject to restocking fees) UPR Products reserves the right to refuse any package returned to us without authorization. Returns/Refunds are processed within (30) business days of receipt (not incl. holidays, weekends, transit time, or day package was delivered.) Special order items, item hardware, rebuild kits. replacement parts, emblems or decals are not able to be accepted for return. If a free shipping item is returned, the original outbound shipping will be deducted from the refund. The customer is also responsible for return shipping. If a customer refuses or is not available for an item, they will be charged the return shipping fee by the carrier. If a free shipping item is refused or missed, the outbound shipping will also be deducted from the refund. Changes of address or entering an incorrect address placing an order, the customer is responsible for any address change/correction fees billed by the carrier.