US PRO INDUSTRIAL 9PC Stubby Impact XZN Spline Bit Socket Set M4 - M18 3968
M16, M18 - Length: 38mm, Drive: 1/2". Stubby design for compact versatility. M4, M5, M6, M8 - Length: 19mm, Drive: 1/4". Highlighted features of this exceptional socket bit set include US PRO Industrial.