Features Wide Application: Widely used for milling machines, gear molding machines, drilling machines, gear roll motors, etc., strict quality control and quality assurance, high safety factor, can be used with confidence. The Packaging Includes: This timing pulley is easy to assemble and disassemble, including drilling with 3 x 20 teeth, timing leather strap wheels, 3 x 60 teeth, a time -time leather wheel, 3 belts. Aluminum Alloy Material: This Timing Belt Pulley is made of high -quality aluminum alloy, which is oxidized on the surface, is solid and durable, and has a long service life. Easy to Carry: Small size, easy to carry and store, easy to use, good performance. Excellent After-sales Service: We provide you with high-quality after-sales service. If you have any questions, please feel free to contact us, and we will deal with it for you as soon as possible. Specification: Item Type: Timing Belt Pulley  Number of Teeth: 60teeth＆20teetn Tooth Pitch: Approx. 2mm / 0.1in Hole Diameter: Approx. 8mm / 0.3in Flange: Double Belt Width: Approx. 6mm / 0.2in Belt Length: Approx. 610mm / 24in 852mm / 33.5in 1220mm / 48in Specification: 3Pcs/set Package List: 3 x 20 Teeth Bore Timing Pulley 3 x 60 Teeth Bore Timing Pulley 3 x Belt  Package List 3 x 20 Teeth Bore Timing Pulley 3 x 60 Teeth Bore Timing Pulley 3 x Belt