As a model builder I am always on the lookout for new knives and cutters. For several years I have been using the Olfa Art Knife as part of my primary tools. These knives are well made, the blades are very sharp and offer a different profile from the classic #11 blade as found in the knives by X-acto, Excel, etc. The blades are quite sharp and do well on plastic, small wood pieces, and even soft metal "flash" (not recommended for blade life). My only complaint is that the fine tip of the blade tends to break off, but I change my blades liberally as I use the OLfa for "fine" work and use the knives with cheaper blades for the "rough" cutting. The handle is plastic with metal blade fittings. I find the handle comfortable and easy to control. One needs to be careful (as with all sharp tools) as the Olfa knife cuts through skin as well as other materials. I enjoy these knives and recommend them to other people who do fine cutting work.