Introducing the Router Base Plate with Centering Pin by POWERTEC. This convenient woodworking tool adds precision to your routing applications while offering a flexible option that accommodates a wide assortment of standard routers. It can be used for template-routing, trimming, shaping, grooving, inlaying, flattening, and curving the edge. The increased functionality permits routing along the edges to be easier and more precisely by keeping your router leveled on the workpiece, by reducing the chance of tipping occurred when passing a board's edge. Features made of durable, 5/16" thick 5/16 clear acrylic to give your work optimal visibility. It comes with a convenient centering pin to ensure this attachment to be solidly attached and centered beneath your router. Includes multiple sizes of screw sets that accommodate a great variety of the router bases. Fits: Porter Cable (Series: A100, A7529, A690, A8529, A890) Ryobi (R1631K) Makita (RF1101) Bosch (1617 series, 1618, 1619, 1619 EVS, MR23 Series) Hitachi (M8V, M-12VC, TR12) DeWALT (DW621, DW616 series, DW625, DW618) Craftsman (315 275 000, 315 175 040, 315 175 050, 315 175 060, ) & more! Please note: Use the three marked holes on the Bosch 1617 fixed base to attach the Powertec router base, using the “A” hole pattern. See the 3rd image. POWERTEC is a US-based manufacturer of high-quality woodworking machines, woodworking accessories, and a wide assortment of OEM replacement parts. We are committed to exceeding expectations while bringing the best innovations, technologies, and product development to the industry.