1.material: aluminum 2.tooth type: T2.5 3.pitch:2.5mm 4.flange:double 5.widht:6mm Introductiontooth type:T2 ... .5tooth number:16width:6mmbore:5mmflange:doublescrew hole:2 ... drawings, and machine all kind of timing pulleys.2. We can provide high quality products for you, ... 4.5mm,5mm,8mm MXL,XL,L2.032mm,5.08mm,9.525mm T2.5mm,5mm,10mm,20mm ...