WHOLESALE Sturdy and durable chrome vanadium steel construction. Great for high-torque applicationsRust-resistant finishIncludes 2 storage rails for organizationContents: 1/2 inch Drive: 12, 14, & 17mm 3/8 inch Drive: 3, 4, 5, 5.5, 6, 8 & 10mmIllinois Industrial Tools ⚠ WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.