DEWALT DW6183 D-Handle Base for DW616/618 Routers Micro-fine depth adjustment ring provides precise depth adjustments in 1/64-inch increments Adjusts vertically for a constant switch/cordset location Adjustable, tool-free steel motor cam lock makes depth adjustment and base changes quick Quick release motor latches for fast and easy motor pack removal for bit and base changes Clear, LEXAN sub-base provides bit visibility, and accepts standard template guide bushings