Name: Industrial SprocketModel: 04C / 25HMaterial: 45# SteelSurface Treatment: Hardening of teeth surfacesTeeth Pitch: 1/4'' (6.35mm)Teeth: forty two Teeth ~ 60 TeethBore: 10mm 12mm 14mm 15mmShaft Hole: Machining completed (Standard hole)Note:Due to diverse production batches, the diameter of the stairs may differ slightly. Please seek advice from the particular product for accuracy!Quantity : 1Pcs