The Allied Machine & Engineering 7C216P-0021CI is a high-performance carbide drill insert designed specifically for drilling cast iron materials. This 21/32" diameter insert features a 140-degree included angle and is coated with Allied's proprietary AM300‚® coating, enhancing its durability and performance. The insert is part of the 16 Series and utilizes a C2 (K20) carbide grade, ensuring optimal hardness and wear resistance for demanding drilling applications. The GEN3SYS‚® XT geometry of this insert is engineered to increase penetration rates and extend tool life, providing a cost-effective solution for high-penetration drilling tasks. Its design offers excellent chip control, improved durability, and added stability, making it a reliable choice for professionals seeking efficiency and precision in their drilling operations.