Product Name : Hand Wheel;Material : Plastic, Metal;Center Bore Diameter (.) : 12mm / 0.47"Wheel Diameter (.) : 99mm / 3.9";Revolving Handle Size (.) : 19 x 62mm / 0.7" x 2.4" (Max D * H);Wheel Thickness (.) : 17mm / 0.6"Hex Socket Size (.) : 7mm/0.27";Wheel Height(without handle) : 24mm/0.9"Color : Black;Weight : 179gFeature: 3 Spoke, 3.9amp;Wheel Dia, 12mm Bore Dia.Design with revolving handle, hand wheel has threaded hole for easy handle assembly.It is widely used in industrial machine tools, such as milling machine, lathes, grinders etc. Package Content : 1 x Hand Wheel1 x Revolving HandleNote:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.