A couple red flags with this product.  One, some folks have received a fence that does not fit their 14 inch Jet band saw.  That was not a problem for me, the fence I received fit the saw very well.  The second problem however may be more widespread and may not manifest until you've had the fence for a while (as noted in other reviews).  The problem is with the locking mechanism.  I noticed after installing the fence that it would not lock at all.  When you take a good look at the mechanism you see an oblong fitting that rotates, like a cam, to put pressure on the locking tab.  Problem is that in my fence the "cam" was not nearly large enough to exert much pressure at all.  Apparently, based on other reviews, there is a plastic tab that is glued to the cam or perhaps to the tab that provides the necessary pressure to compress the tab against the railing.  Unfortunately for me I did not install my fence until about 35 days after I received it and the return window had expired.  Amazon, as usual, was awesome and they have agree to provide a full refund and return shipping.  So I dodged a bullet and my advice is to avoid this fence altogether.  The Jet band saw, on the other hand, has been great so far but that is based on limited use.