Stahlwille Series 540 Metric Crow-Foot Spanners have a 3/8in Drive and can be used with either socket tools such as extension bars and ratchets, or with torque wrenches. PLEASE NOTE: Ensure the settings on the torque wrench are modified.

Universal Carbon steel Countersink (Dia)16.5mm (L)50mm.Suitable for this countersink is constructed from carbon steel which means it's extremely hard durable and incredibly heat resistant.