Atlas Copco ETD S4-04-I06 CTADS X121 Nut Runner Torque Gun

Atlas Copco ETD S4-04-I06 CTADS Nut Runner Torque Gun is a DC-powered pistol-grip nutrunner with a 1/2-inch square drive, designed for precise, repeatable fastening in assemblies where torque control matters. As part of Atlas Copco’s ETD family, it offers compact handling by a tool that weighs about 0.44 lb, enabling operation in tight workspaces. The CTADS designation identifies this variant within the S4-series lineup. Current listings indicate ETD-S4-04-I06-CTADS is discontinued by the manufacturer, which may affect availability and support. This model uses a standard 1/2 in. square drive, making it compatible with common fasteners used in small-to-mid-sized torque applications and suitable for integration with other S4-series tools in appropriate setups. When considering a purchase, verify compatibility with existing S4 components and any controller or workflow requirements to ensure consistent, repeatable results in production or service environments.