The trend draining groove jig is perfect for routing draining grooves in solid timber for belfast type sinks made from 12mm hardwearing cnc machined phenolic it provides a 05 fall with grooves at 50mm pitch and 455mm long with sight marks for lining up and three removable sloping runners for support there is also a cutter diameter check hole and fixing holes for user made stops for repetitious work includes 1 x cove cutter and 1 x guide bush diameter 30mm specification fall 05groove pitch 50mm g