Wrench Sizes (Charts & Guides) - Home Stratosphere- standard wrenches sizes guide ,Similar to other combination standard wrenches, this design features an open-end wrench head and a closed-end. The wrench is available in a range of sizes, with the smallest option 1/4 inch, going up to 2 inches. The wrench also comes in various lengths and a variety of arm lengths, allowing you to choose just the right size for your next ...What Are the Standard Wrench Sizes in Order?17/4/2020· Standard American wrench sizes, from the largest to smallest and measured in inches, are 5/8, 19/32, 9/16, 1/2, 7/16, 3/8, 11/32, 5/16, 9/32, 1/4, 7/32, 3/16, 5/32 and 1/8. Wrenches are available in a set or individually. A small set has six to 10 wrenches, ranging from 5/16 to 1 inch in size.