The 30-tooth ratcheting design of Cornwell's 3/8" Flex Head Ratchet, No. TRF42H, allows new bite with only a 12-degree handle swing. The ball and dimple flex joint holds the head in position, preventing unwanted movement. A thin head design provides close clearance application. The high-polished nickel chrome plating resists rust and prolongs tool life. Head thickness of 7/16" and width of 1-1/16", The tool is 7-11/16" long.