A penknife is among the most flexible and handy tools around. Often called pocketknives considering they can quite literally fit in your pocket, penknives can be used for everything from opening a package and removing staples, to carving and sharpening a pencil. Name a fiddly job requiring a blade, and it's almost certain a penknife can help save the day. Here at Building Materials, we have a range of penknives for sale from some of the world's leading brands, including FatMax, Stanley and Vitrex. For example, the FatMax Retractable Utility Knife comes with five blades, making it suitable for a huge variety of jobs. Meanwhile, the Stanley retractable ceramic pen cutter is attachable to a key ring, and the Vitrex Multipurpose Knife does as it says on the tin and can be used for many different tasks. That said, it's particularly suited to cutting carpet and vinyl tile, while it also includes a scoring tool for ceramic and glass tiles. Browse our full range today to find the best penknives for your projects.