Technical data Drive profile size, inch - 1/4 " Output profile - External square Drive profile size, metric - 6,3 mm Drive profile size, metric - 6,3 mm Drive profile - Internal square DIN standard - 3123 Surface finish - Chrome plated Drive profile size, inch - 1/4 " Gross weight - 30 g Material - Chrome Vanadium Steel Packaging suitable for wall hanging - Yeshttp://img.directindustry.com/images_di/2ai/save-En.gif