Ordered several pre-cut inserts for my Dewalt toolbox, plus one sheet of 70mm thick for other storage. The foam is robust and easy to cut with a good craft knife or the knife supplied in the cutting set. If you plan to cut out larger areas in the foam (say for power tools etc.) it's worth having the base cutting disc set to smooth the bases of the cut areas out. If you're just cutting out for hand tools you probably don't need these. I would give a five star rating, however, when I ordered the foam the website showed I would receive a free cutting kit including the hand protection no-cut gloves. Delivery arrived, received the knife and spare blades, but no protective gloves.