With accurate measurements and control, they can produce consistent tapers with remarkable accuracy, ensuring a perfect fit between components With accurate measurements and control, they can produce consistent tapers with remarkable accuracy, ensuring a perfect fit between componentstaper bit. However, using them requires skill and knowledge. The operator must understand the correct speed, feed rate, and depth of cut to avoid damaging the tool or the workpiece.ADA compliant Ecograte 62 is specifically designed to meet requirements of the National Marine Fisheries Service and U.S. Army Corps of Engineers for marine decking and docks. With a 3/4” x 4” mesh and 62% open area, this grating protects seagrass and other shallow marine habitats beneath docks. Ecograte®62 comes with a standard coarse grit walking surface or the optional Aqua Grit (fine grit) surface which provides increased comfort under bare feet.