Every now and then you find a tool that just works. It doesn’t draw attention to itself it doesn’t make any claims that it can’t back up it just does what it’s supposed to do and is content to be put away until called on again. That’s the 1647 Pro Chain Tool. Compatible with virtually any chain you can throw at it the 1647 features a sturdy pin complete with a ball bearing. The bearing helps to ensure the chain pin is driven straight every time. It also includes a shelf to loosen stuck pins.