This Draper Expert Diamond Glass Cutter features a high-quality diamond head (0.024-0.032 karat, No.4) for efficient glass cutting. It is constructed with a durable stainless steel swivel head, a brass shank, and a comfortable wooden handle. This tool is designed to cut glass up to 8mm thick, making it suitable for professional and DIY use. The cutter is approximately 180mm in length and comes in display packaging.