Aluminum XL 10 Teeth 6mm Timing Belt Pulley 2 Flanges for Laser Engraving Equipmentent Tooth number: 10 Tooth pitch: 5.08mm Material: Aluminum Setscrews: M4 Widely used in automotive, textile, printing and packaging equipment, sewing equipment, office equipment, laser engraving equipment, instruments and meters, all kinds of precision machine tools, etc.