The Field Tool Supply CT-A/C DRL 12OAL (31) 31/64 is a high-performance drill bit measuring 12 inches in overall length. This drill bit is designed for precision drilling in various materials, making it suitable for both professional and DIY projects. With a diameter of 31/64 inches, it provides optimal performance and efficiency. The bit is constructed from durable materials, ensuring it can handle tough drilling tasks while maintaining sharpness and accuracy. Ideal for HVAC applications and general drilling needs, this tool is essential for any contractor or handyman.