zeberoxyz 2pcs set gt2 synchronous wheel 20&60 teeth 8mm bore aluminum timing pulley with 2pcs length 200mm width 6mm belt (20-60t-8b-6) zeberoxyz product specification:<br> material: made of high quality aluminum alloy<br> number of tooth: 20&60t<br> bore diameter: 8mm/0.31inch<br> length of timing belt: 200mm/7.9inch<br> width of timing belt: 6mm/0.24inch<br> color: silver<br> application:widely used in milling machine, gear shaper, drilling machine, hobbing machine or other machinery transmission occasions <br> package content:<br> 2pcs gt2 60 teeth 8mm bore synchronous wheel<br> 2pcs gt2 20 teeth 8mm bore synchronous wheel<br> 2pcs length 200mm width 6mm belt<br> 4pcs m4 screws<br> 1pcs m4 allen key<br>