General description The Neilsen 8pc Crows Foot Feet Wrench Spanner Set is designed for efficient removal and installation of hard-to-reach fasteners. This set includes a variety of sizes to accommodate different applications, making it a versatile addition to any toolbox. Technical specifications Drive Size: 3/8 inch Sizes Included: 10mm, 11mm, 13mm, 14mm, 15mm, 17mm, 19mm, 22mm Design: U-notch cut grips fasteners on all four sides