25 V 12 Size: 12mm Features: -Material: Vanadium steel.-Chrome-plated.-Solid pattern with extra deep socket for protruding bolts.-Often used in Industry.-Width across flat: 0.31" - 2.76".-Depth of head: 0.43" - 5.31".-Diameter of head: 0.65" - 3.7".-Shaft diameter: 0.4" - 1.57". Dimensions: -Dimensions: 1.26" H x 5.91" W x 0.39" - 1.18" D.