Tsubaki 40B12FP Finished Bore Sprocket, Single Strand, Hardened Teeth, Inch, #20 ANSI No., 1/2" Pitch, 12 Teeth, 7/8" Bore
</br></br>

</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/51mYcslkDfL.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/41TOGn3oMdL.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/515fgGG9hLL.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/41aNI38eE4L.jpg'></br>