Features 2mm micrograin tungsten carbide tips for cutting the most abrasive materials to give extra long life ptfe coated indicated by distinctive black colouring can be used on hardwood softwood fibreboard plywood and particle board etched dimensions on extra long 40mm shanks for quick identification produces a smooth round over profile or an ovolo mould with quirks includes extra bearing b127a for round over effect dimensions d31 7 mm b9 5 mm r9 5 mm shank diameter8 mm sh