By this converter is fine workmanship, hard, wear-resisting, high hardness, high safety factor, it can open holes quickly, universal and can be used with confidence. A converter is available for hammer drills with quadrilateral shanks and light electric picks. It can be changed to a hexagonal connection so that the drill can be connected to different kinds of tools with hexagonal shanks, such as screwdriver bits, countersunk bits, drills, etc. It is constructed of round steel material. The length of this product is 6.05cm, the width is 1.5cm and the height is 1.5cm. It is used in many occasions, home improvement, industry, bridge, tunnel, etc. Item Name: Hex Shank Adapter Material: Round Steel Features: Wear-resistant, Hard, Efficiency, Wide Applications Size Details: Size: 6.05cm x 1.5cm x 1.5cm/2.38" x 0.59" x 0.59" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hex Shank Adapter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.