Williams 35520 1/2", Drive Standard Impact Socket, 12 Point

Features:

• SuperTorque lobular openings for greater turning power without deforming the fastener. Designed for maximum engagement on 12 point fasteners. Suitable for use with pneumatic and electric impact wrenches. Specially heat treated for impact use to provide long life, safety, and durability. Drive end features pin retention hole and groove
• Square drive tools and accessories - Square drive tools are designed and manufactured with spring loaded lock buttons. The lock button engages with side lock holes drilled in sockets, extensions, and adaptor sensuring positive retention.