With this Big Horn 14107 Universal Offset Router Base add precision to routing applications including straight and rounded edges, inlays and more with this 3/8" thick clear acrylic base with a 1/2" thick reversible edge guide. This universal offset router base can be used for template routing, edge routing, shaping and grooving. The offset base is specifically designed to reduce the natural tipping that can occur when routing on a board's edge; the extension on the offset base has an over-sized hand-gripped knob to make it easier to use and further steady the router while in use. Made of durable, thick clear acrylic with a scratch-resistant surface, the offset base allow you to see your router path for better work accuracy. Bosch: Bosch 1617, Bosch 1618 series, Bosch 1619, Bosch 1619 EVS | Dealt: Dealt DW625, Dealt DW616, Dealt DW618 series | Hitachi: Hitachi M12VC (not M12V) | Makita: Makita 1100 series | Porter Cable: Porter-Cable 100, Porter-Cable 690, Porter-Cable 890 series, Porter-Cable 7529, Porter-Cable 8529.