Sharp needles are pointed tools commonly used in sewing and crafting. They are designed to easily pierce through fabric, allowing for the stitching of materials together. The sharp tip helps to create small holes, making it easier to thread yarn or thread through the fabric. In addition to sewing, sharp needles are also used in medical settings, such as for injections or drawing blood. These needles are designed to minimize pain and discomfort while ensuring that the procedure is effective. Both types of needles come in various sizes and shapes, depending on their specific purpose and application.