Product Name: Woodruff Key / Half Round Key (DIN6888) Model NO.: DIN6888 Type: Woodruff Key Woodruff Key, Parallel Key: Half Round Keys, Keys, DIN6888 Woodruff Keys: DIN6888 Woodruff Key DIN6888 Trademark: Sea Song Transport Package: Inner Box + Outer Carton + Wooden Pallet Specification: DIN, ANSI, BS, UNI Origin: China HS Code: 8483 Product Description Woodruff Key / Half Round Key DIN 6888 Standard sizes. Material: Carbon steel C45. Stainless steel ANSI 304, 316.Surface Finish: Plain, Zinc Plating, Black. Size, thickness, style or other specifications can be designed according to your demand. The woodruff keys are mainly used for mechanical, electrical, automobiles and other machinery.