STRONGLY RECOMMENDED! Our Price $29.88
We strongly recommend using a router sub base with any dovetail jig.
Many routers, sad to say, are not quite precise enough to use on dovetail jigs. There are two problems:
1. The base may not always be stiff enough. The result is a mysterious gap at the end of your joint where the plastic router base caves in as it begins to lose the support of the guide rails near the end of the jig, and allows the bit to cut too deep. Try pressing on your router base with your thumbs and youll see what we mean.
2. Another problem is that the axis of the router collet may not be in line with the axis of the base, in other words, eccentric. The result of a router bit thats eccentric to the guide bushing can be a misaligned joint.
A good quality router sub base will fix both problems. It also provides better visibility.
Weve included a centering cone with our router sub base that allows you to accurately center the sub base (and therefore your guide bushing) when you install the sub base.
Our router sub base also has one other unique feature. You may have noticed AKEDA guide bushings have a small notch on the rim. This notch fits a pin on our sub base to prevent the guide bushing from rotating when you tighten it. The guide bushing is not included with the sub base.
Our sub base is 6-1/2 dia. (165mm) by 3/8 (9mm) thick clear acrylic and the recess for the guide bushing is precision machined, so it installs accurately every time. It includes all the necessary mounting hardware. Follow the installation instructions carefully.
The Jig Store router sub base is made for Porter Cable style guide bushings and fits the following routers:
Porter Cable: 690 series, 7529 and 8529
Ryobi: Most models
Bosch: 1615, 1617 and 1618
Makita: Most models
Sears - 175: 315 175 040, 315 175 050, 315 175 060 and 315 175 070
Sears - 275: 315 275 000, 315 275 100 and 315 275 110
Sears - 320: 24605
Fein: FT 1800
Milwaukee: 5615, 5616 and 5619
Freud: FT 2000 E
Hitachi: M8V, TR12 and M12V
DeWalt: 621, 625, 616 series, and 618 series
We value your feedback. If our router sub base fits (or could be made to fit) a router we havent listed, please tell us, and well ask our manufacturer to make the necessary changes.