Feature●Country of Origin: Taiwan●Drive: 0.4 inch (9.5 mm) (3/8 inch)●Compatible Hex Bolt Size: 0.4 - 0.8 inches (9 - 21 mm) (11 / 32 - 13 / 16 inches)●Product Dimensions (W x H x D): 1.1 x 2.6 x 1.1 inches (28 x 65 x 28 mm); Weight: 6.3 oz (180 g)Description
With this one, it can be used with a wide range of screw shapes and sizes.
Can also turn nuts or bolts with missing corners.