Anodized aluminum AN hose-end fittings are susceptible to scaring or marring with traditional, hard steel wrenches. To combat this, Russell AN Hose-End Wrenches are made from a durable 7075 alloy material to prevent damage to the anodization. Designed to be long lasting, these AN wrenches are a precise fit ranging in size from -04 through -20 and are finished in a durable black anodized finish. Russell AN Wrenches are available individually or as a complete set. Every toolbox should have a set of these handy hose-end wrenches.