We can either manufacture complete from your drawings or samples, or we can gearcut your machined blanks. Technical Max. pitch worm 3 DP / 8.5 Module/1 " CP Max. outside diameter 5 inch / 127 mm Min. pitch 32 DP / 0.8 Module Min. outside diameter 1/2 inch / 12.5 mm Max. lead 60 inch / 1525 mm Max. length of shaft 36 inch / 915 mm Worm & Thread Grinding Max. pitch or load 3.976 inch / 101 mm Max. outside diameter 9.7 inch / 247 mm Min. pitch 80 tpi Min. outside diameter 0.078 inch / 2 mm Max. helix angle 45 ° Max. length of shaft 34 inch / 870 mm . . Most worms are manufactured to customer's drawings and can be manufactured in any material to suit customer's requirements. HEAT TREATMENT;Case hardening, through hardening, nitriding etc. Plating & anodising can also be carried out.