Stainless steel. Considerably longer service life. Weathering resistant outdoor use. With locking ball. Made in Germany. Total length (for class): 147 mm. Drive: Square, hollow 6.3 mm (1/4 inch). Output: Square, solid 6.3 mm (1/4 inch). Net weight: 0.06 kg. Safety: Up to20% higher torque values in the range of HINOX tools (static charge) - Having the same hardness, high-grade stainless steel provides better mechanical strength properties than the standard material (31 Carve 3) - Safer application / reduction of the risk of injury. High quality: Serviceable life up to three times higher as measured in a continuous load test. Environmental friendliness: Environmentally friendly fabrication: without surface coating. - No allergic reactions due to chemical coatings.