HELICAL SKU: SPEC-3496-U Boston Gear H1218R Plain Helical Gear, 45 Degree Helix, 14.5 Degree Pressure Angle, 0.625 Bore, 12 Pitch, 18 Teeth, Steel, RH (NEW IN BAG) MSRP Was Price Now 100.00$ USD 1 in stock Add to Your List