Stahlwille Square Drive Insert Tools

Stahlwille square drive insert tools enable seamless integration of standard sockets with interchangeable torque wrench systems. Ideal for use with MANOSKOP® and other modular torque tools, these inserts are available in common sizes (e.g., 1/4", 3/8", 1/2", 3/4") and interface types (9x12 mm, 14x18 mm). Engineered in Germany to exacting DIN/ISO standards, Stahlwille square drive inserts deliver dependable torque transfer and secure socket engagement for industrial, automotive, and aerospace environments. They are built to withstand high-cycle use and ensure accurate, repeatable results across critical fastening applications.