GearWrench 9557 16mm Stubby Flex-Head Combination Ratcheting Wrench Flex head tilts up to 180 degrees at any interval Stubby wrench beam allows you access into tight areas that a standard flex head will not Adjustable set screw allows you to set desired head tension Ratcheting box-end needs as little as 5 degrees to move fastener VS. 30 degrees for standard box end wrenches