What tool is commonly used for marking fabric before cutting?

The tool commonly used for marking fabric before cutting is tailor's chalk or a fabric marker. This is because marking tools are specifically designed to create temporary lines or marks on fabric to guide the cutting process. Tailor's chalk is a solid form that can be easily applied to the fabric and brushed off or washed away after use. Fabric markers come in various types, some of which are designed to disappear with water or heat, ensuring that any markings do not remain on the final garment.

Using the correct marking tool is crucial in sewing, as it helps ensure accuracy in cutting and assembling pieces, leading to a finished product that fits and looks as intended. Other options, like fabric scissors, are used for cutting, pins hold fabric layers together, and measuring tape is used for taking measurements, which do not serve the specific purpose of marking fabric.