Robust holesaws with a very high cutting performance in hard and soft wood ne metal plasterboard and lots more cuttind depth of approx 30mm content 1 metal pin with 8mm centre drill and 9mm hexagonal adaptor 5 changeable insets 60 67 74 81 95mm diam ideal for making holes to insert wall sockets and switches up to 67mm or for ceiling lighting in timber cladding