Head 타입 = Torx 타입 = Driver Bit Size = T20 Material = Chrome Vanadium Steel Titanium screw tips. Quality titanium screw tips. Very high tightening torques can be applied to these parts thanks to their extreme resistance. 25 mm long parts with standard, hexagonal 1/4" drive. Available in Pozidriv, Phillips and Torx versions. Available in packs of 5.