-inch diameter, AGMA 11 Quality, Inch or Metric. MATERIALS: Experience in Alloy & Stainless Steels, Aluminum, Brass, Plastic. SERVICES: Precision HSS and Carbide Hob Sharpening Of... CLICK ON THE PRODUCT CATEGORIES BELOW FOR ADDITIONAL INFORMATION. spur gearsand splines helical gears other formsadapted to generation other precision components hob sharpening service introduction | contact | home ... Straight Flute Hobs To 7-inch Long Or 5-inch Diameter. PRODUCTS: Flat Gears, Worm Gears, Pallets, Hubs, Pinions, Armature Shafts, Screws, Straight Side Face Gears, Involute Splines...