8-piece Flex-Head Anti-Slip Wrench Set Metric 8-17 mm. Ratchet anti-slip tooth design keeps wrench head tight, with no slipping and flopping around, increasing anti-slip property by 30%. The ratcheting wrench grips fasteners, even when they become rounded due to long-term wear, and works better than most of the ratchet wrenches you’ve used before. The 72-teeth ratchet gear inside the box ends is smooth and requires only a 5-degree working swing arc, allowing it to turn in limited spaces and enabling easy and fast operation. The 180-degree flex head helps you reach small places where most ratchet wrenches would not reach, for effortless operation. The flexhead ratcheting combination set is made of premium chrome vanadium steel. It is heat-treated for maximum strength, and an additional black electrophoretic coating improves surface corrosion resistance, effectively prolonging its service life. This wrench set includes 8 wrenches covering sizes 8, 10, 11, 12, 13, 14, 15, and 17mm, satisfying most of your needs. The WORKPRO Ratcheting Combination Wrenches Set is definitely a premium mechanics hand tool to meet the tough requirements of professional automotive technicians and industrial users. It is an essential addition to your tool box. The wrench sets come with an oxford cloth tool pouch nicely marked for each wrench size, keeping wrenches organized. They snap into place and can be stored in your car trunk or tool box. 8-piece Flex-Head Anti-Slip Wrench Set SAE 5/16-3/4 inch. This wrench set includes 8 wrenches covering sizes 5/16”, 3/8”, 7/16”, 1/2”, 9/16”, 5/8”, 11/16”, 3/4, satisfying most of your needs.