Features: 6-edge; ideal for holding the crankshaft belt pulleys when loosening the mounting screws; maximum durability: very high fit; applications: HondaPrelude, Accura V6; technical data: key width (inches): 9/16 intake in inches: 1/4 inch square drive: 1/4 inch diameter: 17.0 mm; shape: wide knurled; weight: 60 g; total length: 50.0 mm; DIN Tractor material: high-gloss chrome.