Replace the worn or broken Metabo HPT springs or guide locks in the the Metabo HPT NV75AG, NV65AH, NV50AE with these new spring and guide lock replacement parts. These Metabo HPT 880446 Spring, 886107 guide lock are compatible with Metabo HPT models; NV75AG, NV65AH, NV50AE (sold separately). Please reference the tool manual before purchasing to ensure the proper fit and care of these tool parts. These are genuine Metabo HPT power tool replacement parts.