19 34 Size: 34mm Features: -Material: Vanadium steel.-Chrome-plated.-Polished.-Hand-operated, knurled grip.-Often used in industry, aerospace.-Drive connector square (female): 0.5".-Depth of head: 0.53" - 0.89". Dimensions: -Across flat width: 0.4" - 1.42".-Dimensions: 1.5"- 1.75" H x 0.51"- 1.89" W.