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Drive: square, hollow 1/4 inch, hexagon, solid 1/4 inches Output: outside hexagon, slot, Phillips, Pozidriv, inside hexagon, tamper-torx Ideal product, Weight: 0.01 pounds, Manufacturer: HAZET
Amazonweb --> hazet de Drive: Square, hollow 6.3 mm (1/4 inch), Hexagon, solid 6.3 (1/4 inches) , HAZET – Safety and precision due to minimal manufacturing tolerances