This high-quality drill bit from IRWIN is perfect for any drilling task. Its sturdy construction ensures long-lasting use and its precision design allows for accurate drilling. The #3111002 model is compatible with a variety of power tools and is ideal for both DIY projects and professional work. Additionally, the IRWIN drill bit can also be used as a part of a door lock kit, making it a versatile addition to any toolbox. Whether you're a seasoned pro or just starting out, this drill bit is sure to make your next project a success.