Specifications:Material: AluminumTeeth: 15TBore: 12mmFeatures:1.Designed with double flange, admits synchronizing shaft rotations.2.It is very useful in high-reduction drives in the occasion that need to improve the wrap-around capabilities of belts.3.Used widely in milling machine, CNC engine lathe, gear shaper, hobbing machine, drilling machine or other machinery transmission occassions.Package Includes:1 x XL 12mm Bore Timing Pulley