Ratcheting box-end wrenches come in a variety of sizes to accommodate different bolt and nut dimensions. These sizes are typically measured in either metric or SAE (Society of Automotive Engineers) standards.
In metric sizes, common dimensions include 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, and 30mm.
For SAE sizes, typical measurements are 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1-1/16", 1-1/8", 1-3/16", 1-1/4", 1-5/16", 1-3/8", 1-7/16", 1-1/2", and 1-5/8".
These wrenches are often sold in sets that cover a range of sizes, allowing users to select the appropriate tool for their specific needs. The size range in a set can vary, with some sets focusing on smaller sizes for precision work, while others include larger sizes for heavy-duty applications.
Ratcheting box-end wrenches are designed to provide convenience and efficiency, allowing for continuous turning without needing to remove and reposition the tool. This makes them particularly useful in tight spaces where a traditional wrench might be cumbersome.