DEWALT DW616/618 Router Plunge BaseAdjustable, tool free steel motor cam lock makes depth adjustment and base changes quick and solid locking Integral, through the column dust collection collects 95% of the dust and provides superior bit visibility Precision machined brass bushings and case hardened steel guide rods provide a smooth and accurate plunge stroke Clear, LEXAN sub base provides enhanced base durability, bit visibility, and accepts standard template guide bushings Rubber