The A/C DRL 12OAL NO 17 from Field Tool Supply is a specialized air conditioning drill bit designed for HVAC professionals. Measuring 12 inches in overall length, this drill bit is perfect for accessing hard-to-reach areas in A/C installations. Its durable construction ensures it can withstand rigorous use, providing reliable performance in various materials. The NO 17 size is ideal for specific applications, making it a versatile tool for technicians. This drill bit is essential for efficient and effective HVAC service and installation.