Martin Worm Gear, 14.5 Degree Pressure Angle, Cast Iron, Inch
</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/41ljWRZMQsL.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/413shY%2BXLgL.jpg'></br>
<img src='http://ecx.images-amazon.com/images/I/51p8tGya3dL.jpg'></br>