Superbit Screwdriver FlexibleThe flexible drill bit extension can be used for ordinary hand electric drills and electric drills with perfect performance. It can be bent, twisted, turned, and used in narrow and narrow spaces.Superbit Size The size of the connection part of the hexagonal shank bit is 6.35mm (1/4inch), and the size of theinternal hexagonal head connector is 6.35mm (1/4inch).MaterialFlexible Drill Bit Is Made Of High Quality Plastic And Steel Alloy Hexagon Head, With High Processing Accuracy.Easy To UseSuperbit Screwdriver Flexible is Universal in any Directions, Allows You Get into Those Difficult Places and Get the Job Done Easier and Quicker. Flexible Drill Bit Compact Size Allows For Easy Storage In Your Toolbox Or Pocket.Scope of applicationThis Superbit Screwdriver Flexible is mainly used in narrow spaces where computer case, electric cabinet, furniture, electrical appliances and other screwdrivers cannot work in normal operation.