Usage Tips:[Versatile Application]: This damaged screw kit includes 22pcs and composed of 10 different sizes of drills and extractors which makes it with all kinds of drills and remove any type of screws and bolts. [Premium Quality]:It is made of quality high speed steel, high strengthen and durable, which ensures it is tough enough to easily remove those damaged screws and make your work more efficiently. [Easy Operation]: Two simple steps to remove all stuck screws or bolts in a few seconds. Step One to a drill bit smaller than the damaged screw, Step Two to the size extractor to take out reversely your electric hand drills. [Warm Tips]: Using the eletric hand drill and in low speed when stripping the damaged screw can avoid getting hurt. colour: gray Material: HSS Size: 2.32x0.59x0.59 inches Package Contents: 22 x Easy Out Stripped Screw Extractor Kit Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.